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[Jonathan Caspell] This is
a well-known doctor
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that is beloved
by the community,
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by his friends.
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[Gabriel Monte]
This was shocking.
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This is a straight-up,
cold-blooded murder.
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She had been pressuring him
to marry her,
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and he didn't want to have
anything to do with that.
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He started receiving
nasty text messages.
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He tells us that
she has an ex-boyfriend,
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and he was extremely jealous.
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and he was extremely jealous.
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[Monte] He wanted revenge.
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[Caspell] Is this real?
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[Matt Powell] Every time
the detectives went back
and talked to her,
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she had a different name.
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Who is it?
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Why was he targeted?
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This was a gigantic whodunnit.
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[narrator] Every day
in North America,
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dozens of people are murdered.
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{\an8}The key to solving the
toughest of these homicides
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{\an8}lies in the final 24 hours
of the victim's life.
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{\an8}lies in the final 24 hours
of the victim's life.
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{\an8}To crack the case,
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{\an8}detectives must reconstruct
that critical timeline,
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{\an8}the minutes and hours
containing evidence
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{\an8}that can help
unlock the mystery
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{\an8}and catch the killer.
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{\an8}Lubbock, Texas
is a vibrant community,
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{\an8}uh, home
to Texas Tech University,
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and a very lively music scene,
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and a very lively music scene,
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where people
from all over come
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and just kind of
experience Lubbock.
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{\an8}It's driven by its people,
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{\an8}uh, its tremendous people
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{\an8}that will do anything for you,
uh, at any time.
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And so, it's rare
to have a violent crime.
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That would all change
in July of 2012,
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when one of the more
affluent parts of the city
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becomes the backdrop
of a very violent,
shocking crime.
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{\an8}[phone ringing]
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{\an8}[phone ringing]
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[narrator] The caller is
a coworker of the victim.
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When he hadn't
shown up for work,
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she got concerned
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and she went over
to the house.
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[Monte] She finds blood
on the floor of the house,
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and she follows
that blood trail
to the garage,
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where she finds a body.
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The victim in the case
is Dr. Joseph Sonnier.
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[Monte] Dr. Sonnier
lived on his own.
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Uh, he was 57 years old
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and the chief pathologist
for Covenant Medical Center.
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{\an8}He is, uh, very well known
in the medical community,
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and is beloved by his friends.
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[narrator] Police respond
to Dr. Sonnier's home.
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[Powell] Zach Johnson
is assigned the case.
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He's a 15-year veteran
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of the Lubbock
Police Department.
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of the Lubbock
Police Department.
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It's a normal
working day for me,
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and I'm on homicide call.
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{\an8}So, when control realizes
that there is, in fact,
a suspicious death,
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we travel out to the scene.
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A murder like this
is unheard of,
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and especially
in this neighborhood.
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I mean, this was shocking.
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[Zach Johnson] At the scene,
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Dr. Sonnier is laying
face down on the garage floor.
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There is blood
surrounding his body.
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There are several
gunshot wounds
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and stab wounds to his body,
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and stab wounds to his body,
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and there is
copious amounts of blood
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which is now congealed
on the floor of the garage.
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[narrator] Investigators move
inside the home
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to begin processing
this scene.
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[Johnson] In the living room,
we see eyeglasses
on the floor.
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There's a big bay window
that is pushed in.
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There's a chair
that's been overturned.
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There's a whiskey tumbler
overturned,
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and we find shell casings
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on the floor
of the living room.
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on the floor
of the living room.
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There is multiple blood drops
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that lead from the living room
area directly into the garage.
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And one thing we see
in the living room
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was a plastic bottle
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that had had the end of it
either cut out
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or torn out, or something
of that nature.
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Uh, the plastic bottle
raised some interest.
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Uh, it appeared to have
some type of gunshot residue
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on one end of it.
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What I immediately
thought of was,
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What I immediately
thought of was,
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"This is a cheap man's
silencer."
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Somebody did not want
anybody to know
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that they had fired shots.
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So, the question is,
"What happened?"
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The thing that immediately
stands out to me
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is that big bay window
that's been pushed in,
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and there is a footprint
in the garden
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outside of the home.
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[narrator] Investigators
posit a theory
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of what likely transpired.
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[Johnson] Somebody entered
through that big window.
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[Powell] Dr. Sonnier drops
his drinking glass.
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[Johnson] They fired
several shots.
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[Powell] And then,
probably knocks over the chair
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trying to get out
of the situation.
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Tried to run to safety,
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in the meantime,
drops his eyeglasses.
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Well, I think it was
Dr. Sonnier trying to escape.
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[Johnson] The trail of blood
that is leading from that area
to the garage
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would tell me,
as an investigator,
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"He's trying to get out
of the house.
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He's trying to get away
from this shooter,
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He's trying to get away
from this shooter,
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and he collapses
inside the garage."
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[narrator] Since Dr. Sonnier
was still alive,
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investigators surmise
the killer followed him
to the garage
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and stabbed him to death.
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What the medical examiner
learned through the autopsy
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was that Dr. Sonnier had been
shot five separate times
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and that he had been
stabbed, uh, 11 times.
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{\an8}[narrator] To solve the crime,
police need to piece together
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{\an8}[narrator] To solve the crime,
police need to piece together
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{\an8}the last 24 hours
of Joseph Sonnier's life.
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[Powell] Dr. Sonnier worked
for Covenant Medical Center
here in Lubbock.
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So we start talking
to coworkers.
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[Monte] And they find out
that Dr. Joseph Sonnier
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{\an8}arrives at Covenant
Medical Center at 10:00 a.m.
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{\an8}[Powell] And he worked
till about 7:00 at night.
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{\an8}And we also know from his, uh,
from his security at home
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{\an8}And we also know from his, uh,
from his security at home
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{\an8}that he arrived
approximately 7:15 p.m.
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{\an8}[Johnson] Dr. Sonnier
pours himself a drink
in the living room...
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{\an8}...and gets murdered.
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{\an8}[narrator] And the next day,
on July 11th,
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{\an8}his bloody body is discovered
just before 2:00 p.m.
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{\an8}[Caspell] The medical examiner
establishes the time of death
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{\an8}to be, uh, sometime
the evening before,
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{\an8}to be, uh, sometime
the evening before,
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{\an8}7:15 p.m. to around 10:00 p.m.
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[narrator] Police
now have to determine
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who is responsible
and why they did it.
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Dr. Sonnier's, uh, murder
was a mystery.
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It was a big whodunnit.
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He was well-loved, well-liked.
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So, you know,
the news of his killing
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was just shocking
to a lot of people.
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[Johnson] People
in the neighborhood
are pretty scared.
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The last person they thought
they would see murdered
is Dr. Sonnier.
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The last person they thought
they would see murdered
is Dr. Sonnier.
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[narrator] Investigators
ponder the motive.
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[Powell] My first instinct,
"It's a robbery.
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It's a burglary.
It's a burglary gone bad."
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Uh, that's my first instinct.
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[narrator] But when police
look around the house,
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they find nothing
of value missing.
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[Johnson] There's nothing
disturbed in the house
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other than our immediate
crime scene.
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The only thing that was stolen
in that house
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was Dr. Sonnier's life.
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This is not a burglar
gone wrong.
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This is a straight-up,
cold-blooded murder.
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This is a straight-up,
cold-blooded murder.
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They wanted to be sure
that Dr. Sonnier was killed.
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[narrator] Police suspect
the type of firearm used
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may be a clue
to the killer's identity.
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We determine
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that the casings came
from a .25 caliber handgun.
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Why are we using
a very small caliber handgun
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to commit a murder?
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There's a whole bunch
of larger caliber handguns
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that will do the job
with less ammunition.
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that will do the job
with less ammunition.
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{\an8}[Michael Arntfield]
A .25 caliber handgun
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{\an8}would be appealing
to an offender
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{\an8}because they're
easily concealed,
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{\an8}they're not particularly loud,
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{\an8}uh, and the recoil is minimal,
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and they can
control the weapon,
uh, comparatively well.
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[Johnson] And so,
I have to consider
a female perpetrator.
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She can secret this gun
inside a purse
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and use it with a huge,
uh, amount of surprise.
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[narrator] But whether
male or female,
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who would want to kill
Dr. Sonnier?
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who would want to kill
Dr. Sonnier?
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Investigators look into
his family life,
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which wasn't idyllic.
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Dr. Sonnier was married
for 26 years,
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and the marriage ended
in divorce.
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[narrator] But that marriage
also produced two sons,
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who are now in their 20s.
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When we talked to the sons,
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they're beside themselves.
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They're shocked.
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They're in a state
of disbelief.
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They have no idea
what has happened.
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What made this tragedy,
um, doubly, uh, bad
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was that the sons
of Dr. Sonnier
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was that the sons
of Dr. Sonnier
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had lost their mom,
uh, to a homicide,
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almost two years to the day
that they lost their dad.
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Just something
that you just never hear
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and just never expect.
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[narrator] Police wonder,
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"Could their parents' murders
be connected?"
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[Powell] Certainly, that's
something that you think.
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Are the two murders linked
in any form or fashion?
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[Johnson]
It's a very unique situation.
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We've got two homicides
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that occurred
very close to each other
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in the same family.
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[narrator] Lubbock, Texas
police suspect
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there may be a connection
between Dr. Sonnier's murder
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and the slaying of his ex-wife
two years earlier.
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{\an8}When it's learned
that Dr. Sonnier's ex-wife
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{\an8}had been murdered
in the past few years,
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{\an8}this clearly raises questions.
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{\an8}Is the same perpetrator
involved?
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{\an8}Is there a link here
between these two cases?
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{\an8}[Powell] So, when detectives
started looking at
the relationship
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00:10:30,266 --> 00:10:32,800
{\an8}and the murder
of Dr. Sonnier's ex-wife,
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{\an8}uh, they quickly learned
that she had remarried
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00:10:32,935 --> 00:10:33,000
{\an8}uh, they quickly learned
that she had remarried
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{\an8}after divorcing,
uh, Dr. Sonnier.
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{\an8}And her husband, at the time,
shot her and actually
took his own life.
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{\an8}[Johnson] It was
a murder-suicide,
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{\an8}and so it was restricted to
that particular relationship.
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So that theory,
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00:10:50,600 --> 00:10:53,000
as far as those two cases
maybe being linked,
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was quickly dismissed.
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[Johnson] So, why is
our victim a victim?
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Why did they end up dead?
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00:11:00,967 --> 00:11:02,935
[Powell] We're gonna
delve very quickly
into his personal life,
239
00:11:02,935 --> 00:11:03,000
[Powell] We're gonna
delve very quickly
into his personal life,
240
00:11:04,467 --> 00:11:06,867
uh, to determine whether
anybody has a motive
241
00:11:06,967 --> 00:11:09,300
to harm Dr. Sonnier.
242
00:11:09,367 --> 00:11:11,900
[narrator] His sons reveal
that before he was murdered,
243
00:11:12,000 --> 00:11:15,467
Dr. Sonnier was enjoying
being single again.
244
00:11:15,467 --> 00:11:17,567
[Monte] After Dr. Sonnier
got divorced,
245
00:11:17,567 --> 00:11:19,467
he started dating women,
246
00:11:19,567 --> 00:11:21,467
{\an8}and at the time
that he was killed,
247
00:11:21,467 --> 00:11:22,467
{\an8}he was dating a woman
248
00:11:22,467 --> 00:11:25,100
{\an8}by the name
of Richelle Shetina.
249
00:11:25,166 --> 00:11:28,467
[narrator] Lead investigator
Zach Johnson reaches out
to Richelle,
250
00:11:28,567 --> 00:11:31,000
who agrees to an interview
at police headquarters.
251
00:11:36,700 --> 00:11:40,166
{\an8}[Powell] She's a divorcee
and has four teenage sons.
252
00:11:41,266 --> 00:11:43,600
Richelle Shetina
and Dr. Joseph Sonnier met
253
00:11:43,667 --> 00:11:45,767
at a local ballroom
dancing studio
254
00:11:45,867 --> 00:11:47,100
and hit it off.
255
00:11:47,166 --> 00:11:49,367
[Johnson] So, they'd been
dating about 10 months,
256
00:11:49,467 --> 00:11:51,567
and as a 50th
birthday present,
257
00:11:51,667 --> 00:11:55,467
he says, "Hey,
let's go off to Paris
and celebrate your 50th."
258
00:11:55,567 --> 00:11:57,400
And so, they had just
come back from there.
259
00:12:04,567 --> 00:12:08,800
Dr. Sonnier was the focus
of Richelle's world.
260
00:12:09,567 --> 00:12:10,867
[sobs]
261
00:12:10,900 --> 00:12:15,100
Everything on social media
is Dr. Sonnier and Richelle,
262
00:12:15,166 --> 00:12:16,800
pictures and pictures
and pictures
263
00:12:16,867 --> 00:12:18,667
of their life together,
264
00:12:18,767 --> 00:12:21,867
of their time in Paris
and just being together.
265
00:12:21,867 --> 00:12:24,767
So, when the detectives
were questioning Richelle,
266
00:12:24,867 --> 00:12:28,500
she was able to very quickly,
to give, uh, her whereabouts,
267
00:12:28,567 --> 00:12:31,867
to give a very detailed, uh,
description of where she was
268
00:12:31,867 --> 00:12:32,935
during the times of, uh,
that were important
to the detectives.
269
00:12:32,935 --> 00:12:33,000
during the times of, uh,
that were important
to the detectives.
270
00:12:36,500 --> 00:12:37,767
{\an8}[Caspell] The day
the murder happens,
271
00:12:37,867 --> 00:12:40,767
{\an8}Dr. Sonnier meets Richelle
for lunch at 1:00 p.m.
272
00:12:40,867 --> 00:12:42,800
{\an8}and then returns to work.
273
00:12:42,867 --> 00:12:45,667
{\an8}[Johnson] After lunch,
they went their separate ways,
274
00:12:45,767 --> 00:12:48,066
{\an8}and we know
that Dr. Sonnier left
275
00:12:48,066 --> 00:12:49,567
{\an8}Covenant Medical Center
276
00:12:49,567 --> 00:12:52,767
{\an8}at around 7:00 in the evening.
277
00:12:52,867 --> 00:12:54,000
{\an8}[Powell] The Covenant
Medical Center,
278
00:12:54,000 --> 00:12:57,100
{\an8}it was about a 4-minute drive
from his home.
279
00:12:57,166 --> 00:12:59,500
{\an8}We know he got home
around 7:15.
280
00:13:11,467 --> 00:13:12,667
[cell phone chimes]
281
00:13:12,767 --> 00:13:14,467
[Johnson] Richelle
texts Dr. Sonnier
282
00:13:14,467 --> 00:13:16,867
at approximately 10:32 p.m.
283
00:13:16,867 --> 00:13:18,600
and doesn't get
a reply from him.
284
00:13:18,667 --> 00:13:22,567
So we kind of have
the very beginnings
285
00:13:22,667 --> 00:13:24,500
of a framework of time
286
00:13:24,567 --> 00:13:26,500
where this murder occurred.
287
00:13:26,567 --> 00:13:30,467
[narrator] Richelle's
account confirms what
medical examiners suspected.
288
00:13:30,467 --> 00:13:32,935
{\an8}Dr. Sonnier was likely killed
on July 10th
289
00:13:32,935 --> 00:13:33,000
{\an8}Dr. Sonnier was likely killed
on July 10th
290
00:13:33,467 --> 00:13:36,800
{\an8}between 7:15 and 10:30 p.m.
291
00:13:38,100 --> 00:13:40,867
{\an8}We push on with Richelle
and with the interview,
292
00:13:40,867 --> 00:13:42,166
and I just ask her...
293
00:13:51,367 --> 00:13:54,166
And she brings up
an ex-girlfriend,
294
00:13:54,266 --> 00:13:57,000
uh, of Dr. Sonnier's.
295
00:13:57,100 --> 00:13:57,967
Her name is Sharon,
296
00:13:57,967 --> 00:14:00,100
and she's
an emergency room nurse.
297
00:14:00,166 --> 00:14:02,300
Dr. Sonnier had ended
the relationship,
298
00:14:02,367 --> 00:14:02,935
and that relationship
didn't end well.
299
00:14:02,935 --> 00:14:03,000
and that relationship
didn't end well.
300
00:14:08,667 --> 00:14:09,800
According to Richelle,
301
00:14:09,867 --> 00:14:13,400
Sharon and Dr. Sonnier
had dated a very short time,
302
00:14:13,467 --> 00:14:16,600
and when Dr. Sonnier
ended that relationship,
303
00:14:16,667 --> 00:14:19,800
Sharon was very angry.
304
00:14:19,867 --> 00:14:23,166
[narrator] Is it possible
that Dr. Sonnier's
ex-girlfriend Sharon
305
00:14:23,266 --> 00:14:25,100
was enraged enough
to kill him?
306
00:14:29,667 --> 00:14:32,935
Police want to look closely
at ex-partners, ex-lovers,
307
00:14:32,935 --> 00:14:33,000
Police want to look closely
at ex-partners, ex-lovers,
308
00:14:33,467 --> 00:14:36,200
because jilted lover
may seek vengeance,
309
00:14:37,000 --> 00:14:39,066
and that can lead to violence.
310
00:14:40,867 --> 00:14:44,100
[Johnson] I'm thinking,
"We have a crime of passion."
311
00:14:44,166 --> 00:14:46,767
This is a very cruel
and brutal murder.
312
00:14:48,667 --> 00:14:52,367
This person wanted to know
that Dr. Sonnier was dead.
313
00:14:53,467 --> 00:14:54,767
{\an8}[Caspell] This is not random,
314
00:14:54,767 --> 00:14:57,667
{\an8}with this level
of violence to it.
315
00:14:57,667 --> 00:15:00,567
It is very important
to investigators,
316
00:15:00,567 --> 00:15:02,935
because it helps us
to determine
317
00:15:02,935 --> 00:15:03,000
because it helps us
to determine
318
00:15:03,867 --> 00:15:06,500
the mindset of the killer
319
00:15:06,567 --> 00:15:09,100
at the time of this murder.
320
00:15:09,166 --> 00:15:12,100
[narrator] And investigators
learn that Sharon
had a hard time
321
00:15:12,166 --> 00:15:13,567
taking no for an answer.
322
00:15:14,600 --> 00:15:16,567
And during her relationship
with Dr. Sonnier,
323
00:15:16,567 --> 00:15:18,500
Sharon wanted
to make it exclusive.
324
00:15:18,567 --> 00:15:20,166
Dr. Sonnier didn't.
325
00:15:20,266 --> 00:15:23,000
[Johnson] We discover
that Sharon,
326
00:15:23,066 --> 00:15:25,066
she's pressuring
and pressuring him,
327
00:15:25,066 --> 00:15:29,667
and he was like, "I don't want
an exclusive relationship.
328
00:15:29,667 --> 00:15:31,567
I want to end
the relationship."
329
00:15:40,567 --> 00:15:42,567
[Powell] Sharon got
very spiteful
330
00:15:42,567 --> 00:15:46,066
and sent some very vindictive,
hateful text messages
331
00:15:46,066 --> 00:15:47,266
to Dr. Sonnier.
332
00:15:48,200 --> 00:15:50,367
{\an8}You know, calling him
a [bleep] ,
333
00:15:50,467 --> 00:15:53,200
{\an8}and, you know,
"You're such a [bleep] "
334
00:15:53,266 --> 00:15:54,800
[Johnson] She was
not happy at all.
335
00:15:54,867 --> 00:15:55,767
{\an8}You know...
336
00:15:55,867 --> 00:15:57,567
{\an8}[Johnson reading]
337
00:15:59,467 --> 00:16:02,935
Nasty text messages
to Dr. Sonnier is alarming,
338
00:16:02,935 --> 00:16:03,000
Nasty text messages
to Dr. Sonnier is alarming,
339
00:16:04,867 --> 00:16:08,867
because it shows that there
is unfinished business there.
340
00:16:12,166 --> 00:16:14,767
[Johnson] But is that
a reason enough to kill?
341
00:16:14,867 --> 00:16:16,000
That's our question.
342
00:16:21,567 --> 00:16:23,266
[narrator] Lubbock, Texas
police catch up
343
00:16:23,266 --> 00:16:26,500
with Dr. Sonnier's
ex-girlfriend Sharon, a nurse,
344
00:16:26,567 --> 00:16:29,567
to find out
if she had anything
to do with his murder.
345
00:16:29,667 --> 00:16:33,200
{\an8}Detectives learn
that Sharon is in Austin
346
00:16:33,266 --> 00:16:35,867
{\an8}around the time of death
of Dr. Sonnier.
347
00:16:35,867 --> 00:16:37,767
[narrator] Austin is
a 6-hour drive
348
00:16:37,767 --> 00:16:39,667
from Dr. Sonnier's home
in Lubbock.
349
00:16:40,567 --> 00:16:42,467
So she was eliminated
as a suspect.
350
00:16:44,266 --> 00:16:46,200
[narrator] Back at Lubbock
police headquarters,
351
00:16:46,266 --> 00:16:50,200
Dr. Sonnier's most recent
girlfriend, Richelle Shetina,
352
00:16:50,266 --> 00:16:50,479
continues to cooperate
with investigators.
353
00:16:50,479 --> 00:16:51,000
continues to cooperate
with investigators.
354
00:16:53,166 --> 00:16:55,800
[Johnson] And I ask her,
"Is there anybody else
that you know of
355
00:16:55,867 --> 00:16:57,667
that would wanna harm
Dr. Sonnier?"
356
00:16:58,867 --> 00:17:01,800
{\an8}She says, "Yes, uh,
my ex-boyfriend."
357
00:17:10,600 --> 00:17:12,266
{\an8}[Powell] That was
important information to us.
358
00:17:12,367 --> 00:17:13,767
She has an ex-boyfriend,
359
00:17:13,767 --> 00:17:15,400
uh, a guy named Mike Dixon
360
00:17:15,467 --> 00:17:16,900
who's a doctor in Amarillo.
361
00:17:17,000 --> 00:17:19,800
That's the first time
detectives hear his name
362
00:17:19,867 --> 00:17:20,479
as a potential person
who may have an interest
363
00:17:20,479 --> 00:17:21,000
as a potential person
who may have an interest
364
00:17:22,767 --> 00:17:25,100
in seeing Dr. Sonnier
out of the way.
365
00:17:29,467 --> 00:17:33,567
She tells us that Mike Dixon
is not a very nice person,
366
00:17:33,667 --> 00:17:36,300
uh, very hateful,
uh, very vindictive,
367
00:17:36,367 --> 00:17:38,100
very dishonest.
368
00:17:41,367 --> 00:17:43,400
{\an8}Dr. Dixon didn't take
the breakup very well.
369
00:17:46,166 --> 00:17:47,600
[narrator]
A year-and-a-half earlier,
370
00:17:47,667 --> 00:17:49,967
it had been
love at first sight.
371
00:17:49,967 --> 00:17:50,479
Mike Dixon, uh,
and her first met
372
00:17:50,479 --> 00:17:51,000
Mike Dixon, uh,
and her first met
373
00:17:52,266 --> 00:17:54,166
when she had gone
to his clinic
374
00:17:54,266 --> 00:17:55,867
for BOTOX injections.
375
00:17:55,867 --> 00:17:58,467
She started dating him
at that time.
376
00:17:58,567 --> 00:18:00,700
[narrator] But Dr. Dixon
was also married,
377
00:18:00,767 --> 00:18:03,100
and despite promising
for 18 months
378
00:18:03,166 --> 00:18:04,166
to leave his wife,
379
00:18:04,166 --> 00:18:05,867
he never does.
380
00:18:05,967 --> 00:18:09,000
[Johnson] Richelle tells me,
as this relationship goes on,
381
00:18:09,066 --> 00:18:10,867
he really doesn't
invest in her,
382
00:18:10,867 --> 00:18:12,800
and she picks up on this
pretty quickly,
383
00:18:12,867 --> 00:18:16,300
and she took a lot of offense
to, from Dr. Dixon.
384
00:18:16,367 --> 00:18:18,166
And she finally said,
"I'm done.
385
00:18:18,266 --> 00:18:20,467
I'm through
with this relationship."
386
00:18:20,567 --> 00:18:21,000
[narrator] For Dr. Dixon,
it goes from bad to worse.
387
00:18:23,767 --> 00:18:27,667
His wife discovers the affair
and leaves him.
388
00:18:27,667 --> 00:18:29,800
[Monte] And then,
Richelle Shetina did
mention to investigators
389
00:18:29,867 --> 00:18:32,100
that at some point,
Dr. Dixon finds out
390
00:18:32,166 --> 00:18:35,367
that she's dating
another doctor in Lubbock.
391
00:18:35,467 --> 00:18:37,667
[Powell] Mike Dixon did not
take that very well.
392
00:18:37,767 --> 00:18:41,200
He had even said that
Richelle could continue
to see Dr. Sonnier
393
00:18:41,266 --> 00:18:42,467
if she would see him, too.
394
00:18:52,900 --> 00:18:55,266
She is very much in love
with Dr. Sonnier.
395
00:18:55,266 --> 00:18:58,767
Richelle tells Dr. Dixon,
396
00:18:58,767 --> 00:19:01,667
"I am not coming back to you,
now or ever,"
397
00:19:01,767 --> 00:19:04,867
and he is just livid.
398
00:19:05,967 --> 00:19:07,166
[narrator]
Richelle also mentions
399
00:19:07,266 --> 00:19:09,367
that before Dr. Sonnier
was murdered,
400
00:19:09,367 --> 00:19:12,467
she suspected
she was being stalked.
401
00:19:12,467 --> 00:19:15,266
She remembers one morning
at the gym very clearly.
402
00:19:38,166 --> 00:19:40,967
[Powell] Richelle also
tells us that one time,
403
00:19:40,967 --> 00:19:43,567
uh, around the time
of Dr. Sonnier's death,
404
00:19:43,567 --> 00:19:45,400
they were
in Dr. Sonnier's house
405
00:19:45,467 --> 00:19:50,166
and they saw a flash
from out on the back patio.
406
00:19:50,800 --> 00:19:51,000
[narrator] At the time,
407
00:19:52,233 --> 00:19:54,500
Richelle thought
the camera flash may
have been related
408
00:19:54,567 --> 00:19:57,066
to her suspected
parking lot stalker.
409
00:19:57,066 --> 00:19:58,867
But now, she's not so sure.
410
00:20:00,467 --> 00:20:02,667
[Powell] She tells us that
she couldn't help but wonder
411
00:20:02,767 --> 00:20:05,166
whether or not
that situation with the flash
412
00:20:05,266 --> 00:20:07,667
related, somehow,
to the death of Dr. Sonnier.
413
00:20:09,166 --> 00:20:12,266
[narrator] Was Dr. Dixon
so obsessed with Richelle
414
00:20:12,266 --> 00:20:14,500
that he spied on her
and Dr. Sonnier?
415
00:20:16,266 --> 00:20:20,367
{\an8}Obsessive jealousy is really
when we are just so fixated
416
00:20:20,367 --> 00:20:20,479
{\an8}on a previous partner,
417
00:20:20,479 --> 00:20:21,000
{\an8}on a previous partner,
418
00:20:21,767 --> 00:20:23,166
it becomes all-consuming.
419
00:20:23,900 --> 00:20:25,567
That's also a high-risk time
420
00:20:25,567 --> 00:20:28,600
for a violent act or incident
to occur.
421
00:20:28,667 --> 00:20:30,600
[narrator] Is it possible
Dr. Michael Dixon
422
00:20:30,667 --> 00:20:33,266
killed Dr. Sonnier
in a jealous rage?
423
00:20:34,667 --> 00:20:36,166
[echoing gunshot]
424
00:20:39,100 --> 00:20:42,767
To find out,
Lubbock investigators
drive two hours north
425
00:20:42,767 --> 00:20:46,100
to Dr. Dixon's home
in Amarillo
to ask him in person.
426
00:20:47,266 --> 00:20:48,667
[Johnson] So we go up
to Amarillo
427
00:20:48,767 --> 00:20:50,479
and we talk to Dr. Dixon.
428
00:20:50,479 --> 00:20:50,767
and we talk to Dr. Dixon.
429
00:20:50,867 --> 00:20:51,000
And Dr. Dixon is very open
about everything.
430
00:20:54,100 --> 00:20:58,166
[narrator] Dr. Dixon admits
he was cheating on his wife
with Richelle.
431
00:20:58,266 --> 00:21:02,667
[Johnson] He tells me
that he was in love
with Richelle,
432
00:21:02,667 --> 00:21:06,300
that he was very sad
that the relationship
was over,
433
00:21:06,367 --> 00:21:10,667
and that he had actually
lost his marriage
over that relationship
434
00:21:10,667 --> 00:21:13,100
uh, when his wife
discovered it.
435
00:21:13,166 --> 00:21:16,367
He says the whole reason
for the breakup with Richelle
436
00:21:16,367 --> 00:21:18,867
was because she was
pressuring him to get married.
437
00:21:18,867 --> 00:21:20,467
She wasn't gonna
mess with somebody
438
00:21:20,467 --> 00:21:20,479
that wasn't gonna,
you know, commit to her.
439
00:21:20,479 --> 00:21:21,000
that wasn't gonna,
you know, commit to her.
440
00:21:23,900 --> 00:21:26,667
[narrator] Investigators ask
Dr. Dixon point blank.
441
00:21:26,667 --> 00:21:29,300
Did he murder Dr. Sonnier?
442
00:21:29,367 --> 00:21:32,567
[Powell] Dr. Dixon
tells detectives
that he had nothing to do
443
00:21:32,667 --> 00:21:35,266
with the murder
that took place in Lubbock.
444
00:21:35,367 --> 00:21:36,667
[Johnson] He's moved on
from Richelle.
445
00:21:36,667 --> 00:21:39,166
He's dating a medical student
named Ashley.
446
00:21:40,700 --> 00:21:42,266
He allows us
to photograph him,
447
00:21:42,367 --> 00:21:43,900
to check for defensive wounds,
448
00:21:44,000 --> 00:21:46,767
to check him for any evidence
of physical altercation.
449
00:21:48,266 --> 00:21:50,479
Even provides us
a DNA sample right there.
450
00:21:50,479 --> 00:21:51,000
Even provides us
a DNA sample right there.
451
00:21:51,266 --> 00:21:54,500
So he is being
more than cooperative.
452
00:21:56,967 --> 00:22:00,400
But inevitably, I ask him,
"Can you account
for your whereabouts?"
453
00:22:01,767 --> 00:22:05,567
And Dr. Dixon tells me,
"I was attending surgery
in the morning.
454
00:22:06,767 --> 00:22:10,500
I had lunch with Ashley
and then I returned to work.
455
00:22:10,567 --> 00:22:14,667
And then, in the evening,
we had sushi at one of
our favorite restaurants
456
00:22:14,767 --> 00:22:16,367
and then, we came back
to my place."
457
00:22:17,266 --> 00:22:19,300
So, we immediately
checked with Ashley
458
00:22:19,367 --> 00:22:20,479
and we follow up on the alibi
at the restaurant
and it checks out.
459
00:22:20,479 --> 00:22:21,000
and we follow up on the alibi
at the restaurant
and it checks out.
460
00:22:23,266 --> 00:22:26,000
We were even able to prove it
through a credit card receipt.
461
00:22:26,066 --> 00:22:29,200
So according to the timeline
that we've corroborated
462
00:22:29,266 --> 00:22:32,066
{\an8}there was no way
that Dr. Dixon was in Lubbock
463
00:22:32,066 --> 00:22:33,667
{\an8}to kill Dr. Sonnier.
464
00:22:36,266 --> 00:22:38,066
[narrator] With Dr. Dixon
ruled out,
465
00:22:38,066 --> 00:22:40,667
investigators dig deeper
into the victim's life
466
00:22:40,767 --> 00:22:43,800
for suspects
they may have overlooked.
467
00:22:43,867 --> 00:22:47,667
Dr. Sonnier was very
heartbroken after his divorce.
468
00:22:48,567 --> 00:22:50,479
So he took some time.
469
00:22:50,479 --> 00:22:50,967
So he took some time.
470
00:22:50,967 --> 00:22:51,000
He was able to get back
into the dating game.
471
00:22:55,166 --> 00:22:57,700
[Monte] Inside the living room
of his home, they come across
a notebook,
472
00:22:57,767 --> 00:23:00,767
a little black book
that Dr. Sonnier had
473
00:23:00,767 --> 00:23:03,400
that listed some of
the women he dated
474
00:23:03,467 --> 00:23:06,367
and rated the women
that he was dating.
475
00:23:06,467 --> 00:23:10,800
That's kind of how
he enjoyed being a bachelor
was he dated women
476
00:23:10,867 --> 00:23:14,200
and sort of had grades
[chuckles] for them.
477
00:23:17,467 --> 00:23:20,467
[narrator]
It's Dr. Joseph Sonnier's
last girlfriend Richelle
478
00:23:20,567 --> 00:23:21,000
who now recalls someone else.
479
00:23:23,066 --> 00:23:25,900
A woman reached out
to Richelle directly
480
00:23:26,000 --> 00:23:28,000
just months
before Joseph was killed.
481
00:23:47,467 --> 00:23:50,479
[Powell] In that letter,
it also accused Dr. Sonnier
of actually having sex
482
00:23:50,479 --> 00:23:51,000
[Powell] In that letter,
it also accused Dr. Sonnier
of actually having sex
483
00:23:51,266 --> 00:23:53,800
but never paid her
for the first encounter
that they had.
484
00:23:55,266 --> 00:23:56,767
[Johnson] So here's
another person
485
00:23:56,867 --> 00:23:59,100
that is very angry
with Dr. Sonnier,
486
00:23:59,166 --> 00:24:02,900
but we have to ask ourselves,
"Is this a motive for murder?"
487
00:24:09,700 --> 00:24:11,367
[narrator]
Police in Lubbock, Texas,
follow up
488
00:24:11,367 --> 00:24:14,300
on a poison pen letter
from a woman named Tina.
489
00:24:15,667 --> 00:24:17,767
Tina wrote that she was
an online hookup
490
00:24:17,867 --> 00:24:21,367
of murder victim
Dr. Joseph Sonnier.
491
00:24:21,467 --> 00:24:23,667
[Johnson] In the letter,
this lady does in fact say
492
00:24:23,767 --> 00:24:26,100
that Dr. Sonnier agreed
to pay her for sex,
493
00:24:26,166 --> 00:24:29,867
{\an8}but she's very angry
because Dr. Sonnier
has not kept up
494
00:24:29,967 --> 00:24:31,367
{\an8}his end of the bargain.
495
00:24:31,467 --> 00:24:34,300
{\an8}[narrator] Tina was demanding
that Dr. Sonnier pay up
496
00:24:34,367 --> 00:24:38,029
{\an8}and Dr. Sonnier's girlfriend
at the time, Richelle,
was furious about it.
497
00:24:38,029 --> 00:24:38,767
{\an8}and Dr. Sonnier's girlfriend
at the time, Richelle,
was furious about it.
498
00:24:40,500 --> 00:24:43,800
{\an8}Richelle confronts Dr. Sonnier
about this letter
499
00:24:43,867 --> 00:24:48,266
{\an8}and Dr. Sonnier denies
any knowledge of
whoever this person is
500
00:24:48,367 --> 00:24:50,700
or having a sexual encounter
for money.
501
00:24:50,767 --> 00:24:53,000
He said
it was an extortion letter.
502
00:24:58,266 --> 00:24:59,900
[Johnson] If Richelle
is correct
503
00:25:00,066 --> 00:25:02,066
and somebody is in fact
out there
504
00:25:02,066 --> 00:25:06,767
trying to destroy
this relationship, who is it?
505
00:25:06,867 --> 00:25:08,029
Where do we need to look?
506
00:25:08,029 --> 00:25:08,100
Where do we need to look?
507
00:25:08,166 --> 00:25:09,000
There was no last name
associated with Tina.
508
00:25:10,667 --> 00:25:13,266
We knew that the letter
was post marked in Lubbock,
509
00:25:13,367 --> 00:25:15,266
but there was
no return address.
510
00:25:15,266 --> 00:25:16,967
We just didn't have
a lot to go on.
511
00:25:18,100 --> 00:25:20,767
So we start with Dr. Sonnier's
family and friends.
512
00:25:20,767 --> 00:25:23,467
"Hey, who is Tina?
Have you ever heard of a Tina?
513
00:25:23,467 --> 00:25:27,266
A Christina?
Anybody of that nature?"
514
00:25:27,266 --> 00:25:29,767
And they're like,
"No, we've never heard
of that person."
515
00:25:31,567 --> 00:25:33,066
[narrator]
Investigators are stumped,
516
00:25:33,066 --> 00:25:34,967
but Richelle now tells police
517
00:25:34,967 --> 00:25:37,767
that Tina is probably
a fake name
518
00:25:37,867 --> 00:25:38,029
and she claims to know
who the real Tina may be.
519
00:25:38,029 --> 00:25:39,000
and she claims to know
who the real Tina may be.
520
00:25:47,066 --> 00:25:51,767
She tells me that
Trish was a former lover
of Dr. Sonnier's.
521
00:26:04,400 --> 00:26:08,029
[narrator] Police follow up
with Dr. Sonnier's sons
to confirm Richelle's story
522
00:26:08,029 --> 00:26:08,266
[narrator] Police follow up
with Dr. Sonnier's sons
to confirm Richelle's story
523
00:26:08,367 --> 00:26:09,000
and get more background
on Trish.
524
00:26:11,467 --> 00:26:14,800
[Powell] Trish had been
Dr. Sonnier's
dance instructor.
525
00:26:14,867 --> 00:26:17,166
She ran a dance studio
here in Lubbock
526
00:26:17,266 --> 00:26:22,166
and the same dance studio
where Dr. Sonnier
ultimately met Richelle.
527
00:26:22,166 --> 00:26:25,900
But Dr. Sonnier's sons told us
that she did not have
528
00:26:26,000 --> 00:26:28,266
a good relationship
with the family.
529
00:26:28,266 --> 00:26:32,667
They did not like the way
that she treated Dr. Sonnier
when they were in public.
530
00:26:38,700 --> 00:26:39,000
[Johnson]
Richelle tells me that
after the relationship ended
531
00:26:42,266 --> 00:26:44,100
at the request of Dr. Sonnier,
532
00:26:44,166 --> 00:26:46,100
Trish becomes
very angry with him.
533
00:26:46,166 --> 00:26:49,467
But is that a reason
enough to kill?
534
00:26:49,567 --> 00:26:54,000
[narrator] To find out,
police bring in Trish Berlanga
for an interview.
535
00:26:54,100 --> 00:26:57,066
[Johnson] Trish voluntarily
arrives at the police station.
536
00:26:57,066 --> 00:27:00,800
So we ask her, "Tell me
about a letter from Tina.
537
00:27:00,867 --> 00:27:03,200
Do you know
anything about that?"
538
00:27:03,266 --> 00:27:06,266
And Trish adamantly denies
anything about that letter.
539
00:27:06,266 --> 00:27:08,029
She didn't write it,
she doesn't know anything
about the letter from Tina.
540
00:27:08,029 --> 00:27:09,000
She didn't write it,
she doesn't know anything
about the letter from Tina.
541
00:27:11,900 --> 00:27:16,667
"Okay, so tell us
about your contacts
with Dr. Sonnier.
542
00:27:16,667 --> 00:27:19,266
We know that you call him
and you text."
543
00:27:19,266 --> 00:27:22,900
And she says, "I've barely
spoken with him
over the past ten months."
544
00:27:24,166 --> 00:27:26,567
[narrator] But Richelle claims
that Trish is lying.
545
00:27:38,367 --> 00:27:39,000
[Powell] Trish wanted
to get back together.
546
00:27:40,166 --> 00:27:42,700
Uh, she didn't ever want
the relationship to end.
547
00:27:42,767 --> 00:27:44,266
Detectives obviously
wanted to know
548
00:27:44,266 --> 00:27:47,567
where she was at the time
of Dr. Sonnier's death
549
00:27:47,667 --> 00:27:49,667
and she tells us
that she was in Florida.
550
00:27:51,500 --> 00:27:53,800
{\an8}[Johnson] We checked
that alibi and it checks out.
551
00:27:55,200 --> 00:27:56,367
{\an8}She was in Florida,
552
00:27:56,467 --> 00:27:58,600
{\an8}so there was no way
she was in Lubbock
553
00:27:58,667 --> 00:28:01,700
{\an8}to do the murder
of Dr. Sonnier.
554
00:28:01,767 --> 00:28:04,567
{\an8}[narrator] Trish is now
the third suspect
to be eliminated
555
00:28:05,500 --> 00:28:07,667
after Dr. Dixon
556
00:28:07,667 --> 00:28:08,029
and the emergency room
nurse Sharon.
557
00:28:08,029 --> 00:28:09,000
and the emergency room
nurse Sharon.
558
00:28:11,166 --> 00:28:15,867
And all had been accused by
and acquainted with
Dr. Sonnier's last girlfriend,
559
00:28:15,967 --> 00:28:17,467
Richelle Shetina.
560
00:28:19,767 --> 00:28:22,200
[Powell]
It seemed like every time
the detectives went back
561
00:28:22,266 --> 00:28:25,100
and talked to Richelle,
she had a different name.
562
00:28:25,166 --> 00:28:27,266
From the outside looking in,
we kind of thought
563
00:28:27,266 --> 00:28:29,000
maybe she's a little
too helpful.
564
00:28:30,600 --> 00:28:32,867
{\an8}Investigators often
find it suspicious
565
00:28:32,967 --> 00:28:35,567
{\an8}when somebody appears
too forthcoming,
566
00:28:35,567 --> 00:28:37,200
{\an8}offering multiple names
567
00:28:37,266 --> 00:28:38,029
{\an8}because perhaps
this is a tactic
568
00:28:38,029 --> 00:28:39,000
{\an8}because perhaps
this is a tactic
569
00:28:39,166 --> 00:28:42,066
{\an8}to divert suspicion
from themselves.
570
00:28:42,066 --> 00:28:45,800
[narrator] Police now wonder
if Richelle has been
hiding something all along.
571
00:28:47,967 --> 00:28:49,500
[Johnson] And we find out that
572
00:28:49,567 --> 00:28:51,300
in the days
leading up to the murder,
573
00:28:51,367 --> 00:28:55,367
Dr. Sonnier was actually
texting friends to figure out
574
00:28:55,367 --> 00:28:58,000
[reading]
575
00:29:00,367 --> 00:29:03,100
[Powell] She had been
pressuring him to marry her
576
00:29:03,166 --> 00:29:06,166
and he didn't want to have
anything to do with that.
577
00:29:06,266 --> 00:29:08,029
[narrator] And that's counter
to what Richelle believed
and wanted.
578
00:29:08,029 --> 00:29:09,000
[narrator] And that's counter
to what Richelle believed
and wanted.
579
00:29:19,266 --> 00:29:22,000
[Johnson]
After committing years
of his life to a marriage,
580
00:29:22,066 --> 00:29:25,467
he doesn't want to be
exclusive with anybody.
581
00:29:25,467 --> 00:29:27,367
[narrator] This revelation
sheds new light
582
00:29:27,367 --> 00:29:30,600
on the last lunch Richelle had
with Dr. Sonnier
583
00:29:30,667 --> 00:29:32,467
just hours
before he was murdered.
584
00:29:34,567 --> 00:29:38,029
{\an8}So there was a possibility
that when Dr. Sonnier
585
00:29:38,029 --> 00:29:38,467
{\an8}So there was a possibility
that when Dr. Sonnier
586
00:29:38,467 --> 00:29:39,000
{\an8}and Richelle Shetina
had lunch that day
587
00:29:40,867 --> 00:29:43,567
{\an8}that he might have been
breaking up with her.
588
00:29:43,567 --> 00:29:46,367
[Johnson]
And we find out the day
that he was murdered,
589
00:29:46,367 --> 00:29:47,967
he seemed very agitated.
590
00:29:47,967 --> 00:29:51,967
And his coworkers asked,
"Why are you so agitated?"
591
00:29:51,967 --> 00:29:55,166
And he said, "I'm trying to
end my relationship
with Richelle.
592
00:29:55,166 --> 00:29:57,367
I just don't know
how to do it."
593
00:29:57,467 --> 00:30:00,567
[narrator] And soon after,
Dr. Sonnier is murdered.
594
00:30:01,867 --> 00:30:03,100
[echoing thuds]
595
00:30:06,467 --> 00:30:08,029
Officer Johnson calls Richelle
back to the station.
596
00:30:08,029 --> 00:30:09,000
Officer Johnson calls Richelle
back to the station.
597
00:30:09,867 --> 00:30:14,066
For the first time,
she finds out that Dr. Sonnier
had planned to split with her
598
00:30:14,066 --> 00:30:15,767
on the very day he was killed.
599
00:30:18,367 --> 00:30:21,066
It's information that
Richelle didn't anticipate.
600
00:30:26,266 --> 00:30:27,867
[Johnson] She's not really
been forthcoming
601
00:30:27,867 --> 00:30:29,767
about the relationship,
602
00:30:29,867 --> 00:30:33,900
and we know
that Dr. Sonnier is slipping
out of Richelle's grasp.
603
00:30:35,266 --> 00:30:37,700
The relationship is starting
to fade away.
604
00:30:37,767 --> 00:30:38,029
So the big question is
could she be trying to
lead us off the path
605
00:30:38,029 --> 00:30:39,000
So the big question is
could she be trying to
lead us off the path
606
00:30:42,100 --> 00:30:44,166
that would lead to her
being the murderer?
607
00:30:44,166 --> 00:30:45,200
[echoing gunshots]
608
00:30:49,867 --> 00:30:50,867
[narrator] One week
after the murder
609
00:30:50,867 --> 00:30:53,467
of prominent
Dr. Joseph Sonnier,
610
00:30:53,467 --> 00:30:58,767
police in Lubbock, Texas,
now suspect his girlfriend,
Richelle Shetina,
611
00:30:58,767 --> 00:31:03,000
but Richelle strongly denies
that she could ever harm
the man she loved.
612
00:31:03,100 --> 00:31:06,000
[Johnson] We were able
to finally get
Richelle's phone records
613
00:31:07,166 --> 00:31:08,667
{\an8}and everything
that she told us
614
00:31:08,667 --> 00:31:11,166
{\an8}was corroborated
by her phone records.
615
00:31:12,300 --> 00:31:14,467
{\an8}[narrator] With Richelle's
alibi confirmed,
616
00:31:14,567 --> 00:31:17,266
{\an8}investigators hit
another dead end.
617
00:31:17,266 --> 00:31:18,721
[Powell] Everybody's getting
a little frustrated
at this point.
618
00:31:18,721 --> 00:31:19,000
[Powell] Everybody's getting
a little frustrated
at this point.
619
00:31:20,567 --> 00:31:24,367
[narrator] But on July 17,
a week after
Dr. Sonnier's murder,
620
00:31:24,367 --> 00:31:28,600
that frustration turns to hope
when a man comes in
with a shocking claim.
621
00:31:28,667 --> 00:31:31,467
{\an8}A man named Paul Reynolds
who told them
622
00:31:31,567 --> 00:31:34,000
{\an8}that his friend
confessed to him
623
00:31:34,100 --> 00:31:36,667
{\an8}that he had killed a doctor
in Lubbock.
624
00:31:40,600 --> 00:31:43,667
[narrator] Paul Reynolds
is a nursing assistant
and former Green Beret
625
00:31:43,667 --> 00:31:45,700
living in Amarillo, Texas.
626
00:31:45,767 --> 00:31:48,200
[Johnson]
Paul Reynolds has been
staying with his friend
627
00:31:48,266 --> 00:31:48,721
and just within the past
couple of weeks or so,
628
00:31:48,721 --> 00:31:49,000
and just within the past
couple of weeks or so,
629
00:31:51,367 --> 00:31:53,900
his friend is acting really,
really strange
630
00:31:54,000 --> 00:31:56,867
and it's enough to make Paul
very nervous.
631
00:31:58,367 --> 00:32:00,667
And he tells us his name
is David Shepard.
632
00:32:02,300 --> 00:32:04,800
[Monte] This could be
a potential suspect.
633
00:32:04,867 --> 00:32:07,500
[narrator] Paul Reynolds says
he became friends
with David Shepard
634
00:32:07,567 --> 00:32:10,066
20 years earlier
in the Green Berets.
635
00:32:10,066 --> 00:32:12,767
But now he fears
Shepard has gone
off the deep end,
636
00:32:14,467 --> 00:32:16,767
claiming to have killed
Dr. Sonnier.
637
00:32:24,367 --> 00:32:26,200
{\an8}[Powell] Paul feels like
it's necessary for him
638
00:32:26,266 --> 00:32:28,667
{\an8}to take immediate action
from the things he's hearing.
639
00:32:39,767 --> 00:32:41,700
[Johnson]
Paul is concerned
for his own welfare.
640
00:32:42,867 --> 00:32:44,900
So he's got to stand up
and stop it.
641
00:32:47,800 --> 00:32:48,721
We find out that David Shepard
is a 51-year-old,
642
00:32:48,721 --> 00:32:49,000
We find out that David Shepard
is a 51-year-old,
643
00:32:51,166 --> 00:32:53,300
unemployed salesman
from Amarillo.
644
00:32:53,367 --> 00:32:56,300
He's got three daughters,
he was divorced.
645
00:32:56,367 --> 00:32:59,600
But the question is
why would an unemployed,
646
00:32:59,667 --> 00:33:03,100
51-year-old
divorced salesman...
647
00:33:03,166 --> 00:33:06,867
Why would he want to kill
a very successful doctor
in Lubbock?
648
00:33:13,300 --> 00:33:16,100
[Monte] David Shepard had gone
bankrupt a couple of times.
649
00:33:16,166 --> 00:33:17,600
He's financially troubled,
650
00:33:17,600 --> 00:33:18,721
was doing all kinds
of different things
to try to make ends meet,
651
00:33:18,721 --> 00:33:19,000
was doing all kinds
of different things
to try to make ends meet,
652
00:33:21,166 --> 00:33:25,767
including having Paul Reynolds
sleep on the couch,
maybe pay a little rent.
653
00:33:25,767 --> 00:33:29,100
The overriding theme
is simple.
654
00:33:29,166 --> 00:33:31,100
He can't hold down a job.
655
00:33:31,166 --> 00:33:34,266
He's got three kids
he's got to pay
child support on.
656
00:33:34,367 --> 00:33:36,367
So is money a motive here?
657
00:33:39,166 --> 00:33:40,867
[narrator] But police
first need to confirm
658
00:33:40,967 --> 00:33:42,867
whether Paul Reynolds's
statement is credible.
659
00:33:44,600 --> 00:33:46,767
Or is he casting blame
upon his friend
660
00:33:46,867 --> 00:33:48,721
because Reynolds himself
is involved in the murder?
661
00:33:48,721 --> 00:33:49,000
because Reynolds himself
is involved in the murder?
662
00:33:50,567 --> 00:33:52,166
There's one way to find out.
663
00:33:53,567 --> 00:33:56,000
{\an8}If an informer provides
a number of details
664
00:33:56,066 --> 00:33:59,467
{\an8}that had never been
released to the press
or leaked to the press,
665
00:33:59,567 --> 00:34:04,767
{\an8}police know that
there's some saliency
to this informant's story.
666
00:34:12,367 --> 00:34:13,867
[Johnson]
Paul Reynolds tells us
667
00:34:13,900 --> 00:34:18,066
that David Shepard
had been stalking Sonnier
for some time.
668
00:34:18,066 --> 00:34:18,721
And Richelle said that
there was somebody that she
and Dr. Sonnier believed
669
00:34:18,721 --> 00:34:19,000
And Richelle said that
there was somebody that she
and Dr. Sonnier believed
670
00:34:22,166 --> 00:34:25,667
to be in Sonnier's backyard
taking pictures of them.
671
00:34:25,667 --> 00:34:28,467
[narrator]
Now investigators wonder
if Richelle's description
672
00:34:28,467 --> 00:34:30,867
of her stalker will match
David Shepard.
673
00:34:32,867 --> 00:34:34,567
[Powell] One of the things
Richelle had told us
674
00:34:34,567 --> 00:34:36,800
is that she had seen
a very large man
675
00:34:36,867 --> 00:34:40,467
that she felt was stalking her
at her gym.
676
00:34:40,467 --> 00:34:43,500
[Johnson] And Paul says,
"Yeah, David is very large.
677
00:34:44,100 --> 00:34:46,767
He's a large man."
678
00:34:46,867 --> 00:34:48,721
[narrator] Paul then recounts
David Shepard's alleged
final trip to Lubbock
679
00:34:48,721 --> 00:34:49,000
[narrator] Paul then recounts
David Shepard's alleged
final trip to Lubbock
680
00:34:50,166 --> 00:34:52,600
on July 10th,
the day of the murder.
681
00:34:54,800 --> 00:34:57,967
He left Amarillo
and drove straight
to Dr. Sonnier's home.
682
00:35:00,100 --> 00:35:01,500
[Monte] Paul Reynolds
told them that
683
00:35:01,567 --> 00:35:06,367
David Shepard parks his car
near Dr. Sonnier's house,
684
00:35:06,467 --> 00:35:09,500
walks around to the backyard
and lies in wait.
685
00:35:27,967 --> 00:35:30,400
[gunshots]
686
00:35:30,467 --> 00:35:34,066
[narrator] The pushed-in
window and the plastic bottle
are details of the crime
687
00:35:34,066 --> 00:35:37,200
known only to police
and to the killer.
688
00:35:37,266 --> 00:35:39,100
Officer Johnson
is more convinced
689
00:35:39,166 --> 00:35:41,066
David Shepard
is the likely shooter.
690
00:35:41,800 --> 00:35:43,467
But one question remains.
691
00:35:44,300 --> 00:35:47,100
So then we ask him,
"Okay, why?"
692
00:35:47,166 --> 00:35:48,721
And then, Paul tells us,
"Well, David told me
he was hired
693
00:35:48,721 --> 00:35:49,000
And then, Paul tells us,
"Well, David told me
he was hired
694
00:35:50,467 --> 00:35:53,066
by Dr. Mike Dixon
to kill Dr. Sonnier."
695
00:35:54,400 --> 00:35:58,266
[narrator] Mike Dixon
was Richelle Shetina's
ex-boyfriend.
696
00:35:58,266 --> 00:36:00,066
[Johnson] It was a huge break
in the case.
697
00:36:00,066 --> 00:36:02,900
[Powell] Mike Dixon
and David Shepard
are good friends.
698
00:36:03,000 --> 00:36:05,567
[narrator] Their relationship
puzzles police.
699
00:36:05,667 --> 00:36:08,767
How could such
different people
be such close friends?
700
00:36:10,300 --> 00:36:13,367
[Caspell]
One is a well-established
plastic surgeon,
701
00:36:13,367 --> 00:36:15,266
the other one is a drifter,
702
00:36:15,266 --> 00:36:16,967
someone that's
on the quick take.
703
00:36:16,967 --> 00:36:18,721
And so, the relationship
seems odd.
704
00:36:18,721 --> 00:36:19,000
And so, the relationship
seems odd.
705
00:36:21,100 --> 00:36:23,600
{\an8}But it does really begin
to have the hallmarks
706
00:36:23,667 --> 00:36:27,500
{\an8}of a true
murder for hire plot.
707
00:36:27,567 --> 00:36:30,300
[Johnson]
So, after all the information
that Paul told us,
708
00:36:30,367 --> 00:36:33,600
we were certain that we had
enough probably cause
709
00:36:33,667 --> 00:36:34,900
to obtain an arrest warrant
710
00:36:35,000 --> 00:36:36,266
for the arrest
of David Shepard.
711
00:36:37,700 --> 00:36:40,166
[narrator] On July 16th, 2012,
712
00:36:40,266 --> 00:36:43,900
six days after
Dr. Joseph Sonnier's homicide,
713
00:36:44,000 --> 00:36:48,721
Lubbock police arrest
51-year-old David Shepard
for murder.
714
00:36:48,721 --> 00:36:48,800
Lubbock police arrest
51-year-old David Shepard
for murder.
715
00:36:48,867 --> 00:36:49,000
Police secure a warrant
to search Shepard's
cellphone records
716
00:36:51,567 --> 00:36:53,467
for communications
with Dr. Dixon.
717
00:36:54,567 --> 00:36:57,266
So we find out through
David's cellphone records
718
00:36:57,266 --> 00:37:00,667
that he'd been texting
with Dr. Dixon
719
00:37:01,767 --> 00:37:06,400
for several months
and keeping Dr. Dixon apprised
720
00:37:06,467 --> 00:37:11,567
of the stalking
that David had been doing
at Dr. Sonnier's house.
721
00:37:12,600 --> 00:37:14,066
[Powell] And on
David Shepard's phone
722
00:37:14,066 --> 00:37:15,400
is a picture
of the paned window
723
00:37:15,467 --> 00:37:17,567
in Dr. Sonnier's backyard,
724
00:37:17,667 --> 00:37:18,721
but on the glass,
you see David Shepard
725
00:37:18,721 --> 00:37:19,000
but on the glass,
you see David Shepard
726
00:37:20,567 --> 00:37:22,867
in the reflection
on the window.
727
00:37:22,867 --> 00:37:25,000
[Johnson]
This picture places him
right at the scene right
728
00:37:25,066 --> 00:37:26,467
before the crime happens.
729
00:37:28,367 --> 00:37:30,767
[narrator] Investigators
now have all they need
730
00:37:30,767 --> 00:37:32,467
to charge the mastermind
of the murder,
731
00:37:33,000 --> 00:37:34,467
Dr. Michael Dixon.
732
00:37:35,600 --> 00:37:37,900
[Johnson] We arrest
Dr. Thomas Michael Dixon
733
00:37:38,000 --> 00:37:41,200
and charge him in connection
with the murder
of Dr. Joseph Sonnier.
734
00:37:42,667 --> 00:37:45,467
[Powell]
Dr. Dixon and David Shepard
were both charged
735
00:37:45,467 --> 00:37:46,600
with capital murder.
736
00:37:46,600 --> 00:37:48,721
I made an offer
to David Shepard's attorneys
737
00:37:48,721 --> 00:37:49,000
I made an offer
to David Shepard's attorneys
738
00:37:50,066 --> 00:37:52,467
that if he cooperated
with law enforcement
739
00:37:52,567 --> 00:37:55,100
and then ultimately testified
against Mike Dixon
740
00:37:55,166 --> 00:37:57,467
that we would waive
the death penalty.
741
00:37:57,467 --> 00:37:59,400
[narrator] David Shepard
accepts their offer,
742
00:37:59,467 --> 00:38:02,166
recounting key details
of what led to the murder.
743
00:38:07,367 --> 00:38:10,166
[Powell] David Shepard
tells us that Mike Dixon
744
00:38:10,166 --> 00:38:12,600
was obsessed
with Richelle Shetina.
745
00:38:12,667 --> 00:38:15,100
That he was very angry
with her, wanted her back.
746
00:38:15,166 --> 00:38:17,166
She's dumped him
747
00:38:17,166 --> 00:38:18,721
and dating another
highly successful doctor
748
00:38:18,721 --> 00:38:19,000
and dating another
highly successful doctor
749
00:38:20,967 --> 00:38:22,567
and he... He wanted revenge.
750
00:38:35,567 --> 00:38:37,467
[Johnson] So you had
the perfect storm.
751
00:38:37,567 --> 00:38:39,266
You had somebody
desperate for money
752
00:38:39,367 --> 00:38:43,667
and you had somebody
willing to pony up
to get revenge.
753
00:38:43,667 --> 00:38:46,367
And then, he got some girl
that was a stripper
754
00:38:46,467 --> 00:38:48,200
in a bar there in Amarillo
755
00:38:48,266 --> 00:38:48,721
to write this letter
and sign it Tina.
756
00:38:48,721 --> 00:38:49,000
to write this letter
and sign it Tina.
757
00:38:51,166 --> 00:38:55,367
So in the very beginning,
they weren't about
plotting a murder.
758
00:38:55,367 --> 00:38:57,166
They were about
driving a wedge
759
00:38:57,266 --> 00:39:00,066
between Richelle
and Dr. Sonnier,
760
00:39:00,066 --> 00:39:03,100
but those ideas never pan out.
761
00:39:03,166 --> 00:39:06,467
{\an8}[Monte] So now this plan
has escalated to murder.
762
00:39:08,000 --> 00:39:12,767
{\an8}[Johnson]
Dr. Dixon provides him
with a .25 caliber weapon
763
00:39:12,867 --> 00:39:15,600
and David tells us
that Dr. Dixon paid him
764
00:39:15,667 --> 00:39:18,367
in three silver bars
for the murder.
765
00:39:18,467 --> 00:39:18,721
Dr. Dixon already advanced him
one silver bar,
766
00:39:18,721 --> 00:39:19,000
Dr. Dixon already advanced him
one silver bar,
767
00:39:22,066 --> 00:39:24,166
which he traded in for cash,
768
00:39:24,166 --> 00:39:27,667
and then on the night
of the murder,
he provided him two more,
769
00:39:27,667 --> 00:39:31,467
which he then went and pawned
for cash money as well.
770
00:39:31,567 --> 00:39:35,200
[narrator] Police confirm
the sales of the silver bars
at the pawn shop.
771
00:39:35,266 --> 00:39:37,400
David Shepard's story
checks out.
772
00:39:39,600 --> 00:39:42,266
{\an8}[Caspell] And so, we now have
the pieces of the timeline
773
00:39:42,367 --> 00:39:45,200
{\an8}of the last 24 hours
of Dr. Sonnier's life.
774
00:39:46,767 --> 00:39:48,721
[Johnson] So, on July 9th,
at 8:26 p.m.,
775
00:39:48,721 --> 00:39:49,000
[Johnson] So, on July 9th,
at 8:26 p.m.,
776
00:39:51,967 --> 00:39:54,867
David Shepard sends a message
to Dr. Dixon...
777
00:39:54,967 --> 00:39:56,567
[reading]
778
00:39:56,567 --> 00:39:58,000
Dr. Dixon replies...
779
00:39:58,100 --> 00:39:59,567
[reading]
780
00:40:00,767 --> 00:40:03,367
{\an8}[Monte] The following day,
Dr. Joseph Sonnier arrives
781
00:40:03,367 --> 00:40:05,767
{\an8}at Covenant Medical Center
at 10 a.m.
782
00:40:05,867 --> 00:40:08,600
{\an8}[Powell] At about 1 o'clock,
on the day of the murder,
783
00:40:08,667 --> 00:40:12,100
{\an8}Richelle and Dr. Sonnier
had gone to lunch
784
00:40:12,166 --> 00:40:15,700
{\an8}and he had returned
back to the hospital.
785
00:40:15,767 --> 00:40:18,721
{\an8}[Johnson] At 4:45 p.m.,
David Shepard arrives
at Dr. Sonnier's house
786
00:40:18,721 --> 00:40:19,000
{\an8}[Johnson] At 4:45 p.m.,
David Shepard arrives
at Dr. Sonnier's house
787
00:40:20,667 --> 00:40:24,700
{\an8}goes to the backyard
and lies in wait
for Dr. Sonnier.
788
00:40:26,200 --> 00:40:29,567
{\an8}[Powell] Dr. Sonnier arrived
at approximately 7:15 p.m.
789
00:40:30,367 --> 00:40:31,967
{\an8}At 7:44 p.m...
790
00:40:33,266 --> 00:40:35,367
{\an8}David sends Dr. Dixon a text.
791
00:40:35,467 --> 00:40:39,567
{\an8}[reading]
Then all the messaging
correspondence stops.
792
00:40:40,600 --> 00:40:42,100
[Caspell] Inside
the living room of his home,
793
00:40:42,166 --> 00:40:43,767
Dr. Sonnier pours himself
a drink
794
00:40:43,867 --> 00:40:46,000
and looks out the back window
of his home.
795
00:40:47,400 --> 00:40:48,721
[Johnson]
Dr. Sonnier looks outside
through a back window
796
00:40:48,721 --> 00:40:49,000
[Johnson]
Dr. Sonnier looks outside
through a back window
797
00:40:50,266 --> 00:40:53,667
and sees David sitting there
in his backyard.
798
00:40:55,100 --> 00:40:57,100
[crashes]
799
00:40:57,166 --> 00:41:00,567
[Caspell] David Shepard
approaches the window,
pushes it down,
800
00:41:00,667 --> 00:41:02,900
raises his weapon
and fires one time.
801
00:41:03,000 --> 00:41:04,266
[gunshot]
802
00:41:04,266 --> 00:41:07,100
[Johnson] David gets inside,
shoots four more times,
803
00:41:07,166 --> 00:41:10,667
and then, Dr. Sonnier stumbles
into the garage
804
00:41:10,767 --> 00:41:14,500
where David follows him
as Dr. Sonnier collapses
onto the floor.
805
00:41:14,567 --> 00:41:18,721
David goes up to the body,
removes an assassin's knife
from his bag
806
00:41:18,721 --> 00:41:19,000
David goes up to the body,
removes an assassin's knife
from his bag
807
00:41:19,367 --> 00:41:21,700
and repeatedly stabs
Dr. Sonnier.
808
00:41:23,000 --> 00:41:26,100
{\an8}Dr. Sonnier dies
between 7:45 and 8:00 p.m.
809
00:41:28,767 --> 00:41:33,000
{\an8}And then, he leaves,
drives to a lake and throws
the murder weapon in a lake.
810
00:41:34,867 --> 00:41:37,367
[Powell] He ultimately took
detectives to that lake
811
00:41:37,367 --> 00:41:39,367
and they were able
to find that gun.
812
00:41:39,367 --> 00:41:44,400
{\an8}[Arntfield] It is able
to be traced back
to Dr. Dixon.
813
00:41:44,467 --> 00:41:46,967
{\an8}David Shepard pleads guilty
to the murder
814
00:41:46,967 --> 00:41:48,721
{\an8}and is now serving
life in prison.
815
00:41:48,721 --> 00:41:49,000
{\an8}and is now serving
life in prison.
816
00:41:50,367 --> 00:41:54,567
{\an8}[Powell] Mike Dixon was found
guilty of capital murder
of Dr. Sonnier
817
00:41:54,667 --> 00:41:56,700
{\an8}and was sentenced
to life without parole.
818
00:41:58,166 --> 00:42:00,600
{\an8}This case is defined
by obsession.
819
00:42:00,667 --> 00:42:02,400
{\an8}It's obsession with money,
820
00:42:02,467 --> 00:42:04,400
{\an8}it's obsession with love
821
00:42:04,467 --> 00:42:07,467
{\an8}and it's not being able
to move on with your life