1 00:00:14,714 --> 00:00:15,315 >>> TONIGHT ON "DATELINE" -- 2 00:00:15,315 --> 00:00:18,485 >> MY MOM CALLED ME, "THERE'S A FIRE AT THE HOUSE. 3 00:00:18,485 --> 00:00:21,121 THERE'S A FIRE AT THE HOUSE. >> I JUST KEPT PRAYIN', "PLEASE 4 00:00:21,121 --> 00:00:25,358 LET HER BE OKAY. >> IT WAS CLASSIFIED AS A 5 00:00:25,358 --> 00:00:28,128 HOMICIDE >> Reporter: BEFORE SHE DIED, A 6 00:00:28,128 --> 00:00:29,029 MYSTERY MAN POPPED UP AT THE HOUSE? 7 00:00:29,029 --> 00:00:31,664 >> LOOKIN' OVER THE FENCE. LOOKING IN THE BACKYARD. 8 00:00:31,664 --> 00:00:34,300 >> THERE WERE SOME STRANGE PHONE CALLS THAT WERE COMING IN. 9 00:00:34,300 --> 00:00:39,572 SHE WAS WORRIED AND SCARED >> WE DECIDED TO DO AN 10 00:00:39,572 --> 00:00:42,075 UNDERCOVER OPERATION >> ARE YOU TELLING ME THAT YOU 11 00:00:42,075 --> 00:00:43,810 HAD NOTHING TO DO WITH THIS WHATSOEVER 12 00:00:43,810 --> 00:00:47,681 ARE YOU TELLING ME THAT? >> I CAN'T 13 00:00:47,681 --> 00:00:50,116 >> SO I ASKED HIM, "DID YOU KILL HER? 14 00:00:50,116 --> 00:00:56,456 >> Reporter: HE WAS LIVING A DOUBLE LIFE. 15 00:00:56,456 --> 00:00:59,059 >> SHE KNEW NOTHING. >> HE GETS ON THAT FLIGHT, WE 16 00:00:59,059 --> 00:01:01,194 HAVE NO WAY TO STOP HIM. >> HE WAITED FOR DARKNESS, SO 17 00:01:01,194 --> 00:01:03,296 THAT HE COULD LIGHT THE FIRE >> Reporter: THE KILLER, OR 18 00:01:03,296 --> 00:01:06,232 KILLERS, ARE OUT THERE >> WHAT IF WE'RE NEXT? 19 00:01:06,232 --> 00:01:08,568 >> A YOUNG MOTHER IS KILLED IN A MYSTERIOUS FIRE. 20 00:01:08,568 --> 00:01:13,406 AND IT WOULD TAKE SOME CREATIVE POLICE WORK TO SOLVE THIS ONE. 21 00:01:13,406 --> 00:01:23,717 I'M LESTER HOLT AND THIS IS "DATELINE. 22 00:01:23,717 --> 00:01:32,826 * HERE'S ANDREA CANNING WITH "FIRE 23 00:01:32,826 --> 00:01:33,827 AND ICE. >>> DO YOU REQUIRE POLICE, FIRE, 24 00:01:33,827 --> 00:01:34,728 AMBULANCE? >> HELLO THERE'S A FIRE. 25 00:01:34,728 --> 00:01:41,101 >> Reporter: THE FIRST CALL CAME IN AT 7:50PM 26 00:01:41,101 --> 00:01:42,469 >> OKAY WHERE DO YOU SEE THE FIRE 27 00:01:42,469 --> 00:01:43,203 >> IN THE GARAGE THE FLAMES, YES. 28 00:01:43,203 --> 00:01:44,838 VERY BAD VERY BAD 29 00:01:44,838 --> 00:01:47,474 >> Reporter: IT WAS SEPTEMBER 15, 2014, A RAINY 30 00:01:47,474 --> 00:01:51,144 EVENING IN THE LAKESIDE CITY OF PICKERING, A SUBURB OF TORONTO 31 00:01:51,144 --> 00:01:54,848 ANA CONOLY'S HUSBAND HAD JUST LEFT TO TAKE THEIR DOG FOR A 32 00:01:54,848 --> 00:01:57,484 WALK WHAT HAPPENED NEXT IS STILL HARD 33 00:01:57,484 --> 00:02:02,422 FOR HER TO TALK ABOUT. >> AND THEN HE TURNED AROUND AND 34 00:02:02,422 --> 00:02:03,390 HE SAYS, "CARM'S HOUSE IS ON FIRE 35 00:02:03,390 --> 00:02:05,959 IT'S COMING OUT FROM THE GARAGE." 36 00:02:05,959 --> 00:02:13,867 >> Reporter: CARM WAS CARMELA KNIGHT, ANA'S NEIGHBOR 37 00:02:13,867 --> 00:02:16,970 WHEN ANA STEPPED OUTSIDE, THE FIRST FIRE TRUCK WAS ALREADY ON 38 00:02:16,970 --> 00:02:18,538 THE SCENE. MORE WERE ON THE WAY 39 00:02:18,538 --> 00:02:22,909 >> AND THE FIRE JUST KEPT GOING. IT GOT SO BAD, THE FIRE, AND YOU 40 00:02:22,909 --> 00:02:25,879 COULDN'T -- YOU COULDN'T DO ANYTHING 41 00:02:25,879 --> 00:02:28,081 >> Reporter: CARMELA LIVED WITH HER HUSBAND DAVID AND TWO YOUNG 42 00:02:28,081 --> 00:02:30,750 SONS ANA HAD NO IDEA IF ANY OF THEM 43 00:02:30,750 --> 00:02:34,888 WERE IN THE HOUSE. SHE FELT SO HELPLESS -- CARMELA 44 00:02:34,888 --> 00:02:39,659 WAS ONE OF HER BEST FRIENDS. >> IF YOU EVER MET CARM -- 45 00:02:39,659 --> 00:02:40,694 INSTANTLY, YOU WOULD BECOME FRIENDS WITH HER 46 00:02:40,694 --> 00:02:43,329 >> Reporter: NOW ANA COULDN'T REACH CARMELA ON HER CELLPHONE 47 00:02:43,329 --> 00:02:48,401 >> HER ANSWERING MACHINE JUST SAID, "HEY, IT'S CARM. 48 00:02:48,401 --> 00:02:50,737 SO SHE DIDN'T PICK IT UP >> Reporter: SO SHE CALLED 49 00:02:50,737 --> 00:02:54,407 CARMELA'S MOM, FRANCA, HOPING THEY WERE TOGETHER 50 00:02:54,407 --> 00:02:57,110 >> MY PHONE RANG AND IT WAS ANA. AND SHE WAS SCREAMIN' ON THE 51 00:02:57,110 --> 00:03:02,349 PHONE AND SAYING, "IS CARM WITH YOU? 52 00:03:02,349 --> 00:03:06,052 AND I SAID, "NO, WHAT'S WRONG? WHAT'S WRONG?" 53 00:03:06,052 --> 00:03:07,287 >> Reporter: WHEN YOU REALIZED THAT THEY WERE NOT TOGETHER, DID 54 00:03:07,287 --> 00:03:16,062 YOUR HEART JUST SINK >> YES 55 00:03:16,062 --> 00:03:19,232 YES. >> I WENT STRAIGHT OVER TO THE 56 00:03:19,232 --> 00:03:27,707 HOUSE -- >> Reporter: AND WHAT IS THAT 57 00:03:27,707 --> 00:03:29,776 DRIVE LIKE, WITH ALL THE UNKNOWNS 58 00:03:29,776 --> 00:03:33,279 >> IT WAS JUST AWFUL I JUST KEPT PRAYING. 59 00:03:33,279 --> 00:03:34,514 I JUST KEPT PRAYIN', "PLEASE LET HER BE OKAY, PLEASE LET HER BE 60 00:03:34,514 --> 00:03:35,348 OKAY." >> Reporter: WHEN YOU ARRIVE AT 61 00:03:35,348 --> 00:03:36,483 THE HOUSE WHAT DO YOU SEE? >> THERE WAS STILL THE FIRE ON 62 00:03:36,483 --> 00:03:38,284 THE TOP OF THE GARAGE. AND -- I JUST RAN. 63 00:03:38,284 --> 00:03:41,921 THE DOOR WAS OPEN. >> I SAW, LIKE -- LIKE -- 64 00:03:41,921 --> 00:03:43,656 SOMETHING, A BODY WHICH I THOUGHT WAS A BODY 65 00:03:43,656 --> 00:03:44,858 BUT TWO FIREMEN AND TWO POLICE OFFICERS CAME AND THEY STOPPED 66 00:03:44,858 --> 00:03:47,761 ME >> Reporter: CARMELA'S SISTER 67 00:03:47,761 --> 00:03:50,397 NANCY ARRIVED SOON AFTER WHAT DO YOU SEE? 68 00:03:50,397 --> 00:03:52,098 >> FIRE TRUCKS, AND ALL THE NEIGHBORS, EVERYONE WAS -- IT 69 00:03:52,098 --> 00:03:55,168 WAS JUST VERY BUSY, AND, LIKE, MY MOM JUST KEPT SAYING, 70 00:03:55,168 --> 00:03:58,338 "SOMETHING HAPPENED TO HER." AND I JUST SAID, "NO, SHE'S 71 00:03:58,338 --> 00:03:59,939 FINE SHE'S FINE." 72 00:03:59,939 --> 00:04:01,041 >> Reporter: NANCY FRANTICALLY TRIED TO REACH CARMELA'S 73 00:04:01,041 --> 00:04:03,076 HUSBAND. >> I TRIED CALLING DAVE NUMEROUS 74 00:04:03,076 --> 00:04:05,545 TIMES THAT NIGHT I WANTED TO MAKE SURE THE BOYS 75 00:04:05,545 --> 00:04:06,813 WERE OKAY, AND IF CARM WAS OKAY, AND IF HE HAD SPOKEN TO HER. 76 00:04:06,813 --> 00:04:09,549 >> Reporter: AND WAS HE ANSWERING THE PHONE? 77 00:04:09,549 --> 00:04:11,518 >> NO. >> Reporter: AN OFFICER ASKED 78 00:04:11,518 --> 00:04:13,119 NANCY AND HER MOM TO GO TO THE POLICE STATION 79 00:04:13,119 --> 00:04:17,323 THEY KNEW IT WASN'T A GOOD SIGN, BUT NANCY REFUSED TO GIVE UP 80 00:04:17,323 --> 00:04:21,161 HOPE >> "EVERYTHING'S FINE, DON'T 81 00:04:21,161 --> 00:04:25,298 WORRY. WHEN WE GET TO THE POLICE 82 00:04:25,298 --> 00:04:26,599 STATION, EVERYONE'S GONNA EXPLAIN, IT'S GONNA BE OKAY. 83 00:04:26,599 --> 00:04:27,567 >> Reporter: YOU'RE STILL THINKING SHE'S ALIVE 84 00:04:27,567 --> 00:04:29,102 >> YEAH. >> Reporter: AT THE STATION THEY 85 00:04:29,102 --> 00:04:34,274 LEARNED DAVID AND THE BOYS WERE SAFE. THEY'D BEEN AT HOCKEY 86 00:04:34,274 --> 00:04:36,976 PRACTICE WHILE THAT WAS A HUGE RELIEF, 87 00:04:36,976 --> 00:04:37,944 WHAT POLICE SAID NEXT WAS HARD TO PROCESS 88 00:04:37,944 --> 00:04:39,979 THEY CONFIRMED WHAT FRANCA THOUGHT SHE'D SEEN IN THE 89 00:04:39,979 --> 00:04:41,614 GARAGE >> THEY DID SAY THAT THEY FOUND 90 00:04:41,614 --> 00:04:45,352 A BODY, BUT, I WAS STILL HOPEFUL. 91 00:04:45,352 --> 00:04:47,987 BUT IN THE BACK OF YOUR MIND YOU'RE, LIKE, "SHE'S NOT 92 00:04:47,987 --> 00:04:55,462 ANSWERING HER PHONE. AND IT'S JUST MAKES YOU FEEL 93 00:04:55,462 --> 00:04:57,731 SICK TO YOUR STOMACH >> Reporter: DAVID AND THE BOYS 94 00:04:57,731 --> 00:04:58,865 SHOWED UP AT THE STATION HE LEFT THEM IN THE CAR WITH HIS 95 00:04:58,865 --> 00:04:59,699 FATHER AND WENT IN TO SPEAK WITH POLICE 96 00:04:59,699 --> 00:05:01,034 A DETECIVE TOLD HIM THEY'D FOUND A BODY AND THAT IT MIGHT BE HIS 97 00:05:01,034 --> 00:05:01,801 WIFE'S >> I WANT YOU TAKE A DEEP BREATH 98 00:05:01,801 --> 00:05:06,639 AND TRY AND RELAX. I KNOW IT'S -- I'M NOT SAYING 99 00:05:06,639 --> 00:05:09,342 IT'S HER, RIGHT? >> IT CAN'T BE 100 00:05:09,342 --> 00:05:15,415 >> OKAY. UM, WE DON'T KNOW THAT AT -- AT 101 00:05:15,415 --> 00:05:16,816 THIS POINT BUT THAT'S THE REASON THAT 102 00:05:16,816 --> 00:05:18,051 YOU'RE HERE. >> Reporter: DAVID IMMEDIATELY 103 00:05:18,051 --> 00:05:19,619 WORRIED ABOUT HIS SONS >> MY BOYS - 104 00:05:19,619 --> 00:05:23,757 >> YEAH, THAT'S WHERE I SAY, WE'RE GONNA, WE'RE GONNA, "WE'LL 105 00:05:23,757 --> 00:05:25,492 DO THIS STEP BY STEP, ALRIGHT? >> Reporter: NO ONE WANTED TO 106 00:05:25,492 --> 00:05:27,060 BELIEVE THEIR BELOVED CARM WAS GONE 107 00:05:27,060 --> 00:05:29,662 A WOMAN WHO MEANT THE WORLD TO SO MANY PEOPLE 108 00:05:29,662 --> 00:05:34,434 >> SHE JUST HAD THIS SENSE OF CALMNESS TO HER THAT JUST PUT ME 109 00:05:34,434 --> 00:05:38,738 AT EASE. >> Reporter: WHILE NANCY HELD 110 00:05:38,738 --> 00:05:40,340 TIGHT TO THE HOPE THAT CARMELA WAS STILL ALIVE, LAW ENFORCEMENT 111 00:05:40,340 --> 00:05:42,308 GOT TO WORK. DURHAM REGIONAL POLICE 112 00:05:42,308 --> 00:05:46,246 DETECTIVES DIANNE JENNINGS AND LEON LYNCH WERE ASSIGNED THE 113 00:05:46,246 --> 00:05:48,948 CASE >> Reporter: WHAT CONDITION WAS 114 00:05:48,948 --> 00:05:50,817 THE BODY IN? WHAT COULD THEY TELL FROM 115 00:05:50,817 --> 00:05:53,420 INITIAL ASSESSMENT >> IT WAS -- A BADLY CHARRED 116 00:05:53,420 --> 00:05:59,793 BODY, AND THEY COULD NOT RECOGNIZE WHO THE PERSON WOULD 117 00:05:59,793 --> 00:06:01,361 BE >> Reporter: IT WASN'T UNTIL 118 00:06:01,361 --> 00:06:03,763 DETECTIVES HEARD FROM THE FORENSIC PATHOLOGIST THAT THEY 119 00:06:03,763 --> 00:06:07,734 CONFIRMED THE VICTIM WAS 39-YEAR OLD CARMELA KNIGHT 120 00:06:07,734 --> 00:06:09,302 HOW WAS SHE IDENTIFIED >> BY HER DENTAL RECORDS 121 00:06:09,302 --> 00:06:11,504 >> Reporter: AND THE PATHOLOGIST TOLD THEM SOMETHING ELSE ABOUT 122 00:06:11,504 --> 00:06:13,540 CARMELA'S BODY >> THEY DISCOVERED THAT SHE 123 00:06:13,540 --> 00:06:16,710 HAD -- A TOURNIQUET AROUND HER ARM AND A SYRINGE WITH HER BODY. 124 00:06:16,710 --> 00:06:19,346 >> Reporter: THIS IS DRUG PARAPHERNALIA? 125 00:06:19,346 --> 00:06:23,049 >> YES YES. 126 00:06:23,049 --> 00:06:24,084 >> Reporter: SURPRISING? >> ABSOLUTELY. 127 00:06:24,084 --> 00:06:28,621 >> Reporter: THIS IS A -- HOCKEY MOM, A SUBURBAN MOM. 128 00:06:28,621 --> 00:06:31,958 >> EXACTLY >> Reporter: IT WAS A PUZZLING 129 00:06:31,958 --> 00:06:33,059 CLUE IN WHAT WOULD TURN OUT TO BE A COMPLICATED CASE. 130 00:06:33,059 --> 00:06:34,194 COULD YOU JUST TELL JUST FROM ALL YOUR YEARS OF EXPERIENCE 131 00:06:34,194 --> 00:06:37,831 THAT THIS WAS NOT GOING TO BE EASY 132 00:06:37,831 --> 00:06:39,899 >> YES THAT'S FAIR, YES 133 00:06:39,899 --> 00:06:42,068 >> Reporter: THEY HAD NO IDEA SOLVING THIS MYSTERY WOULD 134 00:06:42,068 --> 00:06:49,075 BECOME A BATTLE OF WITS AND A RACE AGAINST TIME. 135 00:06:49,075 --> 00:06:50,577 >>> WHEN WE COME BACK -- DELIVERING THE HEARTBREAKING 136 00:06:50,577 --> 00:06:53,713 NEWS >> I JUST DIDN'T WANT IT TO BE 137 00:06:53,713 --> 00:06:56,950 TRUE >> AND, A DISTURBING DISCOVERY 138 00:06:56,950 --> 00:06:58,651 >> CARMELA WAS DEAD AT THE TIME OF THE FIRE? 139 00:06:58,651 --> 00:07:18,605 SO SHE DIED BEFORE THE FIRE? >> Reporter: THE NEXT DAY, THE 140 00:07:18,605 --> 00:07:21,074 HOUSE ON PEBBLESTONE CRESCENT WAS STILL SMOLDERING WHEN POLICE 141 00:07:21,074 --> 00:07:24,611 BROKE THE NEWS TO FRANCA THE BODY FOUND IN THE GARAGE WAS 142 00:07:24,611 --> 00:07:29,949 HER DAUGHTER CARMELA'S >> I JUST MISS HER SO MUCH 143 00:07:29,949 --> 00:07:33,119 >> Reporter: HER CAUSE OF DEATH WAS STILL UNKNOWN. 144 00:07:33,119 --> 00:07:35,355 >> THEY JUST SAID, "IT COULD BE AN ACCIDENT. 145 00:07:35,355 --> 00:07:38,291 SHE COULDA DIED IN THE FIRE. WE DON'T KNOW. 146 00:07:38,291 --> 00:07:40,360 >> Reporter: CARMELA'S SISTER NANCY THOUGHT ABOUT HOW CARMELA 147 00:07:40,360 --> 00:07:42,829 SOMETIMES SMOKED IN THE GARAGE >> THEIR DIRT BIKES ARE IN 148 00:07:42,829 --> 00:07:50,804 THERE, SO WE'RE, LIKE, "MAYBE SOMETHING HAPPENED WITH THAT -- 149 00:07:50,804 --> 00:07:51,871 WITH THE GASOLINE AND STUFF," LIKE, WHO KNOWS, RIGHT 150 00:07:51,871 --> 00:07:53,073 >> Reporter: SO AN ACCIDENT, MAYBE. BUT WHEN POLICE BROUGHT 151 00:07:53,073 --> 00:07:55,108 UP THE POSSIBILITY OF A DRUG OVERDOSE 152 00:07:55,108 --> 00:07:58,778 DID YOU BELIEVE THAT SHE COULD DO DRUGS 153 00:07:58,778 --> 00:08:00,280 >> NO, GOD, NO SHE DIDN'T EVEN DRINK. 154 00:08:00,280 --> 00:08:01,448 SHE HAD -- AN OCCASIONAL GLASS OF WINE. 155 00:08:01,448 --> 00:08:02,916 >> Reporter: HER YOUNGEST SON DYLAN, NOW 17, REMEMBERS HIS 156 00:08:02,916 --> 00:08:07,087 FATHER BREAKING THE NEWS OF HIS MOTHER'S DEATH TO HIM AND HIS 157 00:08:07,087 --> 00:08:08,755 BROTHER. >> AND OUR DAD SAT IN FRONT OF 158 00:08:08,755 --> 00:08:14,594 US, AND HE COULDN'T EVEN TELL US, HE SAT THERE, CRYING 159 00:08:14,594 --> 00:08:17,063 AT FIRST I DIDN'T WANNA BELIEVE IT 160 00:08:17,063 --> 00:08:18,298 I REALLY DIDN'T. I DIDN'T THINK IT WAS TRUE 161 00:08:18,298 --> 00:08:19,566 I JUST DIDN'T WANT IT TO BE TRUE 162 00:08:19,566 --> 00:08:24,437 >> Reporter: NANCY WAS ALSO FINDING IT HARD TO BELIEVE 163 00:08:24,437 --> 00:08:27,040 SHE HAD JUST BEEN WITH CARMELA SHE WAS HAPPY. 164 00:08:27,040 --> 00:08:29,909 THEY'D BEEN PLANNING NANCY'S WEDDING, NOW SHE WAS ATTENDING 165 00:08:29,909 --> 00:08:33,046 HER SISTER'S FUNERAL >> THAT CHURCH HELD 600 SEATS, 166 00:08:33,046 --> 00:08:36,816 AND ALL THE SEATS WERE FULL. THERE WAS PEOPLE ALL ALONG THE 167 00:08:36,816 --> 00:08:40,353 WALLS, IN THE BACK >> Reporter: REALLY SHOWS YOU 168 00:08:40,353 --> 00:08:44,157 HOW SPECIAL SHE WAS. >> SHE WAS VERY SPECIAL. 169 00:08:44,157 --> 00:08:49,062 >> Reporter: A FEW DAYS LATER, THE PATHOLOGIST TOLD DETECTIVES 170 00:08:49,062 --> 00:08:50,196 HOW CARMELA DIED >> IT WAS CONFIRMED THAT IT WAS, 171 00:08:50,196 --> 00:08:52,499 IN FACT, A HOMICIDE. >> Reporter: SHE'D BEEN 172 00:08:52,499 --> 00:08:55,435 MURDERED DETECTIVES JENNINGS AND LYNCH 173 00:08:55,435 --> 00:08:57,504 PORED OVER THE REPORT. IT WAS GRUESOME, BUT IT WAS THE 174 00:08:57,504 --> 00:09:02,308 EVIDENCE THEY NEEDED TO KICK OFF THEIR INVESTIGATION. 175 00:09:02,308 --> 00:09:05,278 >> THEY KNEW THAT CARMELA WAS DEAD AT THE TIME OF THE FIRE 176 00:09:05,278 --> 00:09:08,248 >> Reporter: SO SHE DIED BEFORE THE FIRE 177 00:09:08,248 --> 00:09:09,482 >> SHE DID THEY ALSO TOLD US THAT SHE DIED 178 00:09:09,482 --> 00:09:14,254 OF BLUNT FORCE TRAUMA. SHE HAD FACIAL INJURIES, AND SHE 179 00:09:14,254 --> 00:09:16,923 DIED OF A NECK COMPRESSION >> Reporter: THEY COULD TELL ALL 180 00:09:16,923 --> 00:09:21,695 OF THIS EVEN WITH THE BADLY BURNED BODY? 181 00:09:21,695 --> 00:09:24,464 >> RIGHT THEY COULD 182 00:09:24,464 --> 00:09:26,166 >> THAT'S JUST, THE FIRE JUST DESTROYS THE OUTSIDE OF THE 183 00:09:26,166 --> 00:09:29,469 BODY AND ALL THE DAMAGE THAT HAPPENED 184 00:09:29,469 --> 00:09:37,477 PRIOR TO DEATH IS STILL EVIDENT UNDERNEATH THE -- THE SKIN 185 00:09:37,477 --> 00:09:38,645 >> Reporter: OF COURSE, IN A CASE LIKE THIS, POLICE USUALLY 186 00:09:38,645 --> 00:09:42,515 LOOK AT THE HUSBAND FIRST. SO THEY LEARNED WHAT THEY COULD 187 00:09:42,515 --> 00:09:44,184 ABOUT DAVID KNIGHT HE WORKED IN CONSTRUCTION AS A 188 00:09:44,184 --> 00:09:46,553 PROJECT MANAGER. HE AND CARMELA OWNED THAT NICE 189 00:09:46,553 --> 00:09:47,787 FOUR BEDROOM HOUSE IN PICKERING AND THEY HAD A SECOND HOME IN 190 00:09:47,787 --> 00:09:51,324 INDIAN ROCKS BEACH, FLORIDA. >> WHY DON'T YOU TAKE A DEEP 191 00:09:51,324 --> 00:09:55,061 BREATH AND TRY TO RELAX. >> Reporter: IN HIS POLICE 192 00:09:55,061 --> 00:09:58,164 INTERVIEW ON THE NIGHT OF THE FIRE, DAVID TOOK INVESTIGATORS 193 00:09:58,164 --> 00:10:01,301 THROUGH HIS DAY. WHERE DOES DAVID SAY HE WAS 194 00:10:01,301 --> 00:10:02,869 DURING THE TIME OF THE FIRE? >> AT THE HOCKEY RINK WITH HIS 195 00:10:02,869 --> 00:10:06,539 BOYS, HE LEFT THE HOUSE AROUND 3:30, WENT TO MCDONALD'S, 196 00:10:06,539 --> 00:10:09,743 AND THEN WENT TO THE ICE RINK IN TORONTO AND HAD A PRACTICE FROM 197 00:10:09,743 --> 00:10:13,446 6:30 TILL 8:00 THIS IS SOMETHING THAT IS EASILY 198 00:10:13,446 --> 00:10:16,082 VERIFIABLE >> DEFINITELY, YES - 199 00:10:16,082 --> 00:10:17,317 >> YES >> Reporter: HE WAS -- HE WAS AT 200 00:10:17,317 --> 00:10:18,151 THE HOCKEY RINK DURING THE FIRE - 201 00:10:18,151 --> 00:10:21,855 >> MANY WITNESSES SAW HIM THERE, ON THE ICE 202 00:10:21,855 --> 00:10:24,057 >> AND WE HAVE VIDEO SURVEILLANCE SHOWING HIM SKATING 203 00:10:24,057 --> 00:10:25,725 AROUND ON THE ICE DURING THAT TIMELINE 204 00:10:25,725 --> 00:10:27,594 >> Reporter: HE ALSO TOLD THE DETECTIVE THAT WHILE HE AND 205 00:10:27,594 --> 00:10:32,432 CARMELA LIVED IN THE HOUSE TOGETHER, THEY WERE SLEEPING IN 206 00:10:32,432 --> 00:10:34,534 SEPARATE BEDROOMS. THEIR MARRIAGE WAS ENDING AFTER 207 00:10:34,534 --> 00:10:37,704 15 YEARS >> HE'S TALKING ABOUT THEIR 208 00:10:37,704 --> 00:10:40,340 RELATIONSHIP IT WAS AN AMICABLE SEPARATION 209 00:10:40,340 --> 00:10:42,442 AND THAT HE LOVED CARM >> Reporter: AND HIS REACTION TO 210 00:10:42,442 --> 00:10:47,313 THE NEWS THAT NIGHT SEEMED GENUINE. 211 00:10:47,313 --> 00:10:50,884 >> THE DETECTIVE THOUGHT HE WAS EMOTIONAL WHEN HE WAS TOLD - 212 00:10:50,884 --> 00:10:52,952 >> Reporter: ACTING THE WAY ONE WOULD EXPECT WHEN THEY'VE JUST 213 00:10:52,952 --> 00:10:55,588 RECEIVED NEWS LIKE THIS? >> YES 214 00:10:55,588 --> 00:10:59,292 >> Reporter: AND BESIDES, HIS ALIBI WAS AIR TIGHT. 215 00:10:59,292 --> 00:11:01,928 SO DETECTIVES WONDERED, IF CARMELA'S HUSBAND WASN'T THE 216 00:11:01,928 --> 00:11:04,097 KILLER, WHO WAS? IT WAS TIME TO FIND OUT MORE 217 00:11:04,097 --> 00:11:07,367 ABOUT HER FROM OTHER PEOPLE IN HER LIFE 218 00:11:07,367 --> 00:11:11,071 >> WE LEARNED THAT SHE WAS VERY INVOLVED WITH HER BOYS 219 00:11:11,071 --> 00:11:14,074 NOBODY COULD SAY A BAD THING ABOUT CARMELA. 220 00:11:14,074 --> 00:11:17,243 THERE WAS NOTHING NEGATIVE WHATSOEVER IN ANY INTERVIEW. 221 00:11:17,243 --> 00:11:20,413 >> Reporter: TARA COCCIMIGLIO WAS ONE OF THE PEOPLE WHO'D 222 00:11:20,413 --> 00:11:22,515 SPOKEN TO POLICE SHE AND CARMELA WERE FRIENDS 223 00:11:22,515 --> 00:11:24,084 FROM COLLEGE >> WE HAD A LOT IN COMMON. 224 00:11:24,084 --> 00:11:27,153 AND WE BECAME THE BEST OF FRIENDS. 225 00:11:27,153 --> 00:11:29,155 >> Reporter: WHAT DO YOU THINK IT WAS ABOUT YOU TWO THAT -- 226 00:11:29,155 --> 00:11:32,092 THAT EVENTUALLY YOU JUST TOTALLY HIT IT OFF 227 00:11:32,092 --> 00:11:35,695 >> TO BE HONEST, WE BOTH LIKED TO PARTY 228 00:11:35,695 --> 00:11:39,199 AND HAVE A GOOD TIME >> Reporter: SOUNDS FAMILIAR 229 00:11:39,199 --> 00:11:41,101 >> YEAH, SHE WAS A SWEETHEART. SHE HAD A HEART OF GOLD. 230 00:11:41,101 --> 00:11:44,137 AND SHE WAS SO GENUINE >> Reporter: TARA SAYS THEY HAD 231 00:11:44,137 --> 00:11:46,773 SIMILAR DREAMS FOR THE FUTURE. >> I KNEW THAT WE BOTH REALLY 232 00:11:46,773 --> 00:11:52,579 WANTED FAMILIES AND CHILDREN >> Reporter: SHE REMEMBERS 233 00:11:52,579 --> 00:11:55,248 CARMELA FIRST MET HER FUTURE HUSBAND AT A NIGHTCLUB 234 00:11:55,248 --> 00:12:00,520 >> SHE SAID SHE MET SOMEBODY AND THAT HE HAD SENT HER 235 00:12:00,520 --> 00:12:02,489 FLOWERS. >> Reporter: THAT DOESN'T ALWAYS 236 00:12:02,489 --> 00:12:03,656 HAPPEN AFTER YOU MEET SOMEONE AT A CLUB 237 00:12:03,656 --> 00:12:04,791 >> NOPE, IT DOESN'T. SOMEBODY THAT'S GONNA SEND YOU 238 00:12:04,791 --> 00:12:07,861 FLOWERS RIGHT AWAY TO SHOW THAT THEY WERE SO HAPPY TO MEET YOU 239 00:12:07,861 --> 00:12:11,064 IS USUALLY A GOOD SIGN >> Reporter: IT WAS A VERY GOOD 240 00:12:11,064 --> 00:12:12,432 SIGN AFTER A QUICK COURTSHIP CARMELA 241 00:12:12,432 --> 00:12:16,069 AND DAVID GOT ENGAGED ON CHRISTMAS DAY. 242 00:12:16,069 --> 00:12:18,972 WHAT WERE THE BIG PLANS? DID SHE SAY RIGHT AWAY 243 00:12:18,972 --> 00:12:23,243 DID SHE KNOW WHAT -- >> YOU KNOW -- A BIG ITALIAN 244 00:12:23,243 --> 00:12:24,077 WEDDING. >> Reporter: WAS SHE REALLY 245 00:12:24,077 --> 00:12:27,914 HAPPY ON HER WEDDING DAY >> SHE WAS VERY HAPPY. 246 00:12:27,914 --> 00:12:30,216 SHE WAS A BEAUTIFUL BRIDE. >> Reporter: NOT TOO LONG AFTER 247 00:12:30,216 --> 00:12:33,186 THAT, CARMELA AND DAVID WELCOMED THEIR FIRST SON. 248 00:12:33,186 --> 00:12:36,289 >> AND WE WERE ALL SO EXCITED TO MEET HIM 249 00:12:36,289 --> 00:12:39,526 >> Reporter: COULD YOU JUST SEE IT IN HER EYES 250 00:12:39,526 --> 00:12:40,694 THE JOY AND THE LOVE THAT SHE HAD FOR HER FIRSTBORN? 251 00:12:40,694 --> 00:12:44,164 >> YES SHE WAS THRILLED TO BE A MOM 252 00:12:44,164 --> 00:12:46,700 >> Reporter: THREE YEARS LATER, DYLAN WAS BORN 253 00:12:46,700 --> 00:12:49,502 WHAT DID YOU LOVE ABOUT YOUR MOM? 254 00:12:49,502 --> 00:12:53,106 >> JUST -- I GUESS THE WAY -- SHE CARED ABOUT ME AND MADE SURE 255 00:12:53,106 --> 00:12:54,741 THAT I KNEW I WAS LOVED. >> Reporter: AND SHE WAS AN 256 00:12:54,741 --> 00:12:57,911 OFFICIAL HOCKEY MOM? >> YEAH, SHE DEFINITELY WAS. 257 00:12:57,911 --> 00:13:00,647 SHE WAS ALWAYS OUT THERE SCREAMIN' AND SHOUTIN' 258 00:13:00,647 --> 00:13:03,850 >> Reporter: NO ONE EVER SAID ANYTHING TO DETECTIVES ABOUT 259 00:13:03,850 --> 00:13:07,687 CARMELA USING DRUGS. SO A FEW WEEKS LATER, WHEN THEY 260 00:13:07,687 --> 00:13:11,191 GOT HER TOXICOLOGY REPORT. THE RESULTS DIDN'T SURPRISE 261 00:13:11,191 --> 00:13:13,226 THEM >> NO DRUGS IN HER SYSTEM. 262 00:13:13,226 --> 00:13:15,895 HER TOX WAS NEGATIVE >> Reporter: WHAT DID THAT TELL 263 00:13:15,895 --> 00:13:18,498 YOU ABOUT THE SCENE WITH THE DRUG PARAPHERNALIA 264 00:13:18,498 --> 00:13:22,268 IT SUGGEST TO YOU THAT THE -- THAT THE SCENE HAD BEEN STAGED 265 00:13:22,268 --> 00:13:25,372 >> WHEN WE PIECED EVERYTHING TOGETHER, IT CERTAINLY DID 266 00:13:25,372 --> 00:13:27,073 >> Reporter: ANOTHER CLUE CAME FROM THE HOME SECURITY SYSTEM. 267 00:13:27,073 --> 00:13:31,077 INTERIOR DOOR SENSORS HAD BEEN TRIPPED. 268 00:13:31,077 --> 00:13:33,813 >> IT SHOWED THAT SOMEBODY WAS IN THE HOUSE AFTER DAVID AND THE 269 00:13:33,813 --> 00:13:35,382 CHILDREN LEFT FOR HOCKEY >> Reporter: THEY KNEW DAVID AND 270 00:13:35,382 --> 00:13:39,085 THE BOYS LEFT AROUND 3:30 THAT AFTERNOON. 271 00:13:39,085 --> 00:13:42,756 CARMELA CAME HOME FROM WORK AROUND 5:00. 272 00:13:42,756 --> 00:13:43,890 >> SO WE HAD SOME UNEXPLAINED DOORS OPENING AND CLOSING. 273 00:13:43,890 --> 00:13:46,826 SOMEBODY WAS GOING INTO DIFFERENT AREAS OF THE HOUSE 274 00:13:46,826 --> 00:13:49,095 >> Reporter: WHO WAS THAT SOMEBODY 275 00:13:49,095 --> 00:13:53,299 FRANCA RECALLED SOMETHING HER DAUGHTER HAD SAID. 276 00:13:53,299 --> 00:13:57,003 CARMELA HAD TOLD YOU A STORY ABOUT SOMEONE APPROACHING HER, A 277 00:13:57,003 --> 00:14:00,073 MAN FROM A BLACK SUV >> SHE WAS IN THE BACKYARD 278 00:14:00,073 --> 00:14:03,343 DAVE HAD TAKEN THE BOYS DIRT BIKING 279 00:14:03,343 --> 00:14:07,047 A MAN LOOKED OVER THE FENCE AND ASKED FOR DAVE 280 00:14:07,047 --> 00:14:09,683 AND SHE SAID, "DAVE'S NOT HERE." AND HE LEFT, AND THEN SHE RAN TO 281 00:14:09,683 --> 00:14:12,285 THE FRONT AND SAW THIS MAN GETTING INTO THE -- THE BLACK 282 00:14:12,285 --> 00:14:13,453 SUV, AND TOOK OFF. >> Reporter: DID SHE KNOW WHO IT 283 00:14:13,453 --> 00:14:14,954 WAS? >> NO. 284 00:14:14,954 --> 00:14:17,090 >> Reporter: SO THIS IS -- A MYSTERY MAN THAT'S SHOWING UP AT 285 00:14:17,090 --> 00:14:19,826 HER HOUSE? >> YEAH. 286 00:14:19,826 --> 00:14:24,431 >> Reporter: THIS REALLY THICKENS THE PLOT -- 287 00:14:24,431 --> 00:14:28,668 >> YES >> Reporter: COMING UP - 288 00:14:28,668 --> 00:14:31,805 CARMELA'S SISTER-IN-LAW VISITS POLICE AND DROPS A BOMBSHELL 289 00:14:31,805 --> 00:14:34,474 >> HE JUST SAID, "I KNOW WHO, WHAT, WHEN, WHERE AND HOW. 290 00:14:34,474 --> 00:14:36,142 WITH A PHONE CALL I COULD HAVE STOPPED THIS AND I HAVE TO LIVE 291 00:14:36,142 --> 00:14:38,678 WITH THIS FOR THE REST OF MY LIFE." 292 00:14:38,678 --> 00:14:40,080 AND HE BURST INTO TEARS. >> Reporter: WHEN "DATELINE" 293 00:14:40,080 --> 00:14:55,862 >> Reporter: POLICE WERE 294 00:14:55,862 --> 00:14:58,865 PURSUING A NEW LEAD IN THE CARMELA KNIGHT MURDER 295 00:14:58,865 --> 00:15:01,701 INVESTIGATION. HER MOTHER HAD TOLD THEM ABOUT A 296 00:15:01,701 --> 00:15:05,171 MYSTERIOUS MAN IN A BLACK SUV WHO SURPRISED CARMELA IN HER 297 00:15:05,171 --> 00:15:07,507 BACKYARD >> SHE WAS SCARED, YOU KNOW? 298 00:15:07,507 --> 00:15:09,609 SHE DIDN'T KNOW WHO HE WAS >> Reporter: FRANCA SAID CARMELA 299 00:15:09,609 --> 00:15:12,746 TOLD HER HUSBAND DAVID ABOUT THE UNEXPECTED VISITOR 300 00:15:12,746 --> 00:15:15,048 >> SHE TOLD HIM. THIS GUY CAME LOOKING FOR YOU, 301 00:15:15,048 --> 00:15:17,083 DAVE WHAT'S GOING ON?" "OH, NOTHING, 302 00:15:17,083 --> 00:15:22,255 NOTHING, NOTHING," RIGHT BUT THEN HE PUTS THE ALARM ON 303 00:15:22,255 --> 00:15:24,357 THAT NIGHT AND HE'S, LIKE, REALLY PARANOID -- LIKE, SCARED. 304 00:15:24,357 --> 00:15:27,560 >> Reporter: JUMPY >> YEAH, VERY, VERY JUMPY, SHE 305 00:15:27,560 --> 00:15:30,196 SAID >> Reporter: BUT AS DETECTIVES 306 00:15:30,196 --> 00:15:33,366 WERE TRYING TO FIGURE OUT WHO THE MAN WAS, SOMEBODY ELSE 307 00:15:33,366 --> 00:15:37,070 POPPED UP ON THEIR RADAR -- HEATHER KNIGHT 308 00:15:37,070 --> 00:15:40,206 CARMELA'S SISTER-IN-LAW. >> SHE CAME INTO THE POLICE 309 00:15:40,206 --> 00:15:44,444 STATION AND GAVE A STATEMENT >> Reporter: HEATHER WAS MARRIED 310 00:15:44,444 --> 00:15:47,547 TO DAVID KNIGHT'S BROTHER, MATT. AND WHEN SHE HEARD CARMELA HAD 311 00:15:47,547 --> 00:15:50,250 BEEN MURDERED, A SINKING FEELING CREPT IN ABOUT HER OWN HUSBAND 312 00:15:50,250 --> 00:15:52,352 FIRST, SHE TOLD THE DETECTIVES THAT MATT HAD ABRUPTLY LEFT 313 00:15:52,352 --> 00:15:54,454 CANADA >> AND THIS IS VERY QUICKLY -- 314 00:15:54,454 --> 00:15:56,990 VERY SOON AFTER. TWO -- 315 00:15:56,990 --> 00:15:57,991 >> Reporter: CARMELA'S DEATH >> --TWO DAYS LATER. 316 00:15:57,991 --> 00:16:00,260 >> Reporter: HE'S OFF TO FLORIDA? 317 00:16:00,260 --> 00:16:02,395 IT WASN'T JUST THAT MATT LEFT, SHE SAID HE ACTED LIKE HE WAS 318 00:16:02,395 --> 00:16:04,631 NEVER COMING BACK. >> HE HAD LEFT A KEY TO THEIR 319 00:16:04,631 --> 00:16:08,201 HOUSE ON THE -- THE TABLE WHEN HE LEFT. 320 00:16:08,201 --> 00:16:09,669 >> Reporter: BUT WHAT BOTHERED HEATHER THE MOST WAS THE LAST 321 00:16:09,669 --> 00:16:12,072 THING MATT SAID BEFORE HE GOT ON THE PLANE. 322 00:16:12,072 --> 00:16:14,074 >> HE JUST SAID, "I KNOW WHO, WHAT, WHEN, WHERE AND HOW -- 323 00:16:14,074 --> 00:16:16,443 WITH A PHONE CALL I COULD HAVE STOPPED THIS 324 00:16:16,443 --> 00:16:18,745 AND I HAVE TO LIVE WITH THIS FOR THE REST OF MY LIFE. 325 00:16:18,745 --> 00:16:23,183 AND HE BURST INTO TEARS. >> Reporter: NOW THE DETECTIVES 326 00:16:23,183 --> 00:16:25,719 WERE REALLY LISTENING. >> AND HE SAYS, "MAYBE 20, 327 00:16:25,719 --> 00:16:28,221 30 YEARS DOWN THE ROAD WHEN WE'RE ON A BEACH SOMEWHERE OR 328 00:16:28,221 --> 00:16:29,422 SOMETHING I'LL FILL YA IN ON EVERYTHING, BUT I DON'T WANT TO 329 00:16:29,422 --> 00:16:31,324 TELL YOU EVERYTHING, BECAUSE I DON'T WANT YOU TO BE IN THAT 330 00:16:31,324 --> 00:16:33,059 POSITION." >> Reporter: HEATHER WENT ON TO 331 00:16:33,059 --> 00:16:35,161 TELL THEM THAT ON THE NIGHT OF THE FIRE, AS SOON AS MATT HEARD 332 00:16:35,161 --> 00:16:37,263 ABOUT IT HE RUSHED OUT OF THE HOUSE 333 00:16:37,263 --> 00:16:40,433 SHE ASSUMED HE WENT TO SEE HIS BROTHER, BUT THEN SHE GOT A 334 00:16:40,433 --> 00:16:43,069 PHONE CALL >> FROM DAVID KNIGHT SAYING, 335 00:16:43,069 --> 00:16:45,672 "WHERE'S MATTHEW?" AND SHE THOUGHT, "I THOUGHT HE 336 00:16:45,672 --> 00:16:49,909 WAS WITH YOU." AND THEN SHE LATER LEARNS THAT, 337 00:16:49,909 --> 00:16:52,078 IN FACT, HE WAS WITH GRAHAM. >> Reporter: GRAHAM MACDONALD. 338 00:16:52,078 --> 00:16:54,114 A NAME THAT WAS NEW TO INVESTIGATORS. 339 00:16:54,114 --> 00:16:58,351 >> GRAHAM MACDONALD WAS A FRIEND OF HER HUSBAND, AND GRAHAM AND 340 00:16:58,351 --> 00:17:01,021 MATTHEW HAD WORKED TOGETHER AT A COMPANY CALLED HOTSETS IN 341 00:17:01,021 --> 00:17:02,555 TORONTO. SO HE WAS JUST -- A FAMILY 342 00:17:02,555 --> 00:17:05,158 FRIEND >> Reporter: GRAHAM, A HANDYMAN, 343 00:17:05,158 --> 00:17:07,827 WAS ALSO FRIENDS WITH MATT'S BROTHER DAVID. 344 00:17:07,827 --> 00:17:11,031 IN FACT, DAVE HIRED HIM TO SPRUCE UP THE HOUSE ON 345 00:17:11,031 --> 00:17:14,434 PEBBLESTONE CRESCENT SO WHY HAD MATT RUSHED OUT TO 346 00:17:14,434 --> 00:17:17,871 SEE GRAHAM IN THE MIDDLE OF A FAMILY CRISIS AND NOT HIS 347 00:17:17,871 --> 00:17:19,506 BROTHER? A TEAM OF INVESTIGATORS LEFT 348 00:17:19,506 --> 00:17:24,210 CANADA FOR SUNNY FLORIDA TO ASK MATT 349 00:17:24,210 --> 00:17:26,846 >> THEY WENT TO HIS HOUSE. THEY LEFT BUSINESS CARDS 350 00:17:26,846 --> 00:17:30,517 THEY WERE ABLE TO SPEAK TO HIM ON THE PHONE, AND HE REFUSED TO 351 00:17:30,517 --> 00:17:32,619 SPEAK TO THEM. HE SAID THAT HEATHER IS A LIAR, 352 00:17:32,619 --> 00:17:34,721 AND THAT SHE'S JUST TRYING TO GET HIM INTO TROUBLE, AND THAT 353 00:17:34,721 --> 00:17:43,563 HE HAS NO INTENTIONS ON EVER COMING BACK TO CANADA. 354 00:17:43,563 --> 00:17:44,631 >> Reporter: WITH NO JURISDICTION IN THE U.S. OR ANY 355 00:17:44,631 --> 00:17:45,832 EVIDENCE TO PRESS MATT FURTHER, INVESTIGATORS CAME HOME 356 00:17:45,832 --> 00:17:47,934 EMPTY-HANDED WHAT'S MORE, THEY KNEW THAT 357 00:17:47,934 --> 00:17:50,570 MATT, LIKE HIS BROTHER DAVID, HAD AN ALIBI FOR THE DAY CARMELA 358 00:17:50,570 --> 00:17:54,240 DIED HE WAS WITH HEATHER. 359 00:17:54,240 --> 00:17:56,443 >> SHE MADE IT VERY CLEAR THAT HIM AND HER WERE TOGETHER THAT 360 00:17:56,443 --> 00:17:59,079 ENTIRE DAY. HE DID NOT LEAVE HER SIDE 361 00:17:59,079 --> 00:18:03,283 AND THERE'S NO WAY THAT HE -- HE COULD HAVE DONE IT 362 00:18:03,283 --> 00:18:05,452 >> Reporter: THEY HAD STRUCK OUT WITH MATT, SO THEY BROUGHT 363 00:18:05,452 --> 00:18:07,687 GRAHAM MACDONALD INTO THE STATION TO ASK HIM WHERE HE WAS 364 00:18:07,687 --> 00:18:10,056 THE DAY OF THE FIRE. >> HE TOLD US THAT HE WENT TO 365 00:18:10,056 --> 00:18:13,259 VISIT HIS GRANDMOTHER, BUT HIS GRANDMOTHER WASN'T HOME. 366 00:18:13,259 --> 00:18:15,895 HE ALSO TOLD US THAT HE TOOK THE GO TRAIN BACK FROM TORONTO OUT 367 00:18:15,895 --> 00:18:20,233 TO PICKERING, AND THEN WALKED FROM PICKERING TO MOODY'S MOTEL. 368 00:18:20,233 --> 00:18:23,837 >> Reporter: BUT THEN THEY DID SOME DIGGING 369 00:18:23,837 --> 00:18:27,540 >> WE GOT VIDEO SURVEILLANCE FROM HIS GRANDMOTHER'S 370 00:18:27,540 --> 00:18:29,642 APARTMENT, AND GRAHAM DID NOT APPEAR ON THE SURVEILLANCE 371 00:18:29,642 --> 00:18:31,778 VIDEO. >> Reporter: IS THAT FISHY THAT 372 00:18:31,778 --> 00:18:35,482 HE TOLD YOU HE WENT THERE, AND THEN HE'S NOT ON THE 373 00:18:35,482 --> 00:18:38,351 SURVEILLANCE VIDEO >> IT IS FISHY 374 00:18:38,351 --> 00:18:41,054 WE LOOKED AT ALL THE GO TRAIN SURVEILLANCE 375 00:18:41,054 --> 00:18:43,556 GRAHAM MACDONALD WAS NOT ON THE GO TRAIN 376 00:18:43,556 --> 00:18:46,893 >> Reporter: POLICE STARTED TO WONDER IF GRAHAM MIGHT'VE HAD A 377 00:18:46,893 --> 00:18:50,330 REASON TO WANT CARMELA DEAD. DID YOU THINK THAT MAYBE 378 00:18:50,330 --> 00:18:51,531 GRAHAM MACDONALD, HAD SOME TYPE OF AN OBSESSION WITH CARMELA 379 00:18:51,531 --> 00:18:55,235 THAT POSSIBLY WHEN HE WAS DOING RENOVATIONS HE GOT FIXATED ON 380 00:18:55,235 --> 00:18:58,438 HER? >> DEFINITELY. 381 00:18:58,438 --> 00:19:03,543 THE WAY HIS STORY WASN'T PANNING OUT. 382 00:19:03,543 --> 00:19:06,379 AND IF HE HAD SOME TYPE OF RELATIONSHIP WITH HER, AND IT 383 00:19:06,379 --> 00:19:07,514 DIDN'T GO WELL. >> Reporter: AFTER TALKING TO FRIENDS AND 384 00:19:07,514 --> 00:19:09,749 FAMILY, THE SCORNED LOVER THEORY DIDN'T GO ANYWHERE 385 00:19:09,749 --> 00:19:11,084 >> WE'RE JUST GONNA SIT IN HERE GRAHAM 386 00:19:11,084 --> 00:19:13,653 YOU WANT TO TAKE A SEAT HERE >> Reporter: BUT AFTER CATCHING 387 00:19:13,653 --> 00:19:15,889 HIM IN THOSE LIES, THEY NEEDED TO TALK TO GRAHAM AGAIN. 388 00:19:15,889 --> 00:19:18,825 SO, THEY CALLED HIM BACK FOR A SECOND INTERVIEW 389 00:19:18,825 --> 00:19:22,028 GRAHAM MAINTAINED HE WAS IN TORONTO THAT DAY, BUT HIS MEMORY 390 00:19:22,028 --> 00:19:25,165 OF IT WAS HAZY, AND THERE WAS A GOOD REASON FOR THAT 391 00:19:25,165 --> 00:19:27,600 >> WHAT DO YOU MEAN YOU WEREN'T ALL THERE? 392 00:19:27,600 --> 00:19:30,236 >> WELL I WAS SMOKING CRACK THAT NIGHT. 393 00:19:30,236 --> 00:19:32,038 >> THAT NIGHT? >> YEAH, I DID A COUPLE PERCS 394 00:19:32,038 --> 00:19:35,942 AND I SMOKED CRACK >> HE WAS USIN' DRUGS THAT DAY, 395 00:19:35,942 --> 00:19:39,346 AND HIS RECOLLECTION'S ALL OVER THE MAP AND JUMBLED BECAUSE OF 396 00:19:39,346 --> 00:19:42,882 THAT HE DOESN'T REALLY REMEMBER WHERE 397 00:19:42,882 --> 00:19:46,286 HE WAS >> Reporter: WHEN PRESSED BY THE 398 00:19:46,286 --> 00:19:49,589 INVESTIGATORS, GRAHAM GOT UPSET AND WANTED TO END THE INTERVIEW. 399 00:19:49,589 --> 00:19:51,057 >> I DON'T WANT TO DO THIS ANYMORE. 400 00:19:51,057 --> 00:19:52,125 I'M GONNA STOP -- YOU GUYS DO WHAT YOU NEED TO DO. 401 00:19:52,125 --> 00:19:56,229 >> OKAY, BUT YOU KNOW, GRAHAM, LISTEN - 402 00:19:56,229 --> 00:19:57,063 >> NO. I DON'T KNOW WHAT TO DO HERE 403 00:19:57,063 --> 00:19:58,131 >> HE BECAME A PERSON OF INTEREST THAT NEEDED A LOT MORE 404 00:19:58,131 --> 00:20:00,834 INVESTIGATING. >> Reporter: AND HE WASN'T THE 405 00:20:00,834 --> 00:20:01,568 ONLY ONE GRAHAM HAD LED THEM TO A 406 00:20:01,568 --> 00:20:02,569 POSSIBLE NEW SUSPECT SOMEBODY IS NOT TELLING THE 407 00:20:02,569 --> 00:20:05,238 TRUTH HERE >> THERE ARE SOME GAPS IN THE 408 00:20:05,238 --> 00:20:10,410 STORY. ABSOLUTELY 409 00:20:10,410 --> 00:20:11,611 >> COMING UP - >> THEY MEET UP WITH HIM IN THE 410 00:20:11,611 --> 00:20:14,581 PARKING LOT. THEY TRY TO ENGAGE HIM IN 411 00:20:14,581 --> 00:20:15,815 CONVERSATION, AND HE JUST KEEPS WALKING AND WOULDN'T STOP, 412 00:20:15,815 --> 00:20:18,385 WOULDN'T SPEAK TO THEM >> Reporter: A SUDDENLY SILENT 413 00:20:18,385 --> 00:20:21,388 HUSBAND -- LIVING A DOUBLE-LIFE 414 00:20:21,388 --> 00:20:24,157 >> THERE WAS NAKED PHOTOS OF -- THIS GIRL. 415 00:20:24,157 --> 00:20:41,408 AND SHE WAS KISSING HIM ON THE >> Reporter: WITH EACH PASSING 416 00:20:41,408 --> 00:20:44,544 MONTH, CARMELA'S MOTHER, FRANCA GREW MORE IMPATIENT WITH THE 417 00:20:44,544 --> 00:20:48,248 INVESTIGATION. >> I PHONED JOHN, ONE OF THE 418 00:20:48,248 --> 00:20:50,884 DETECTIVES, TWO, THREE TIMES A DAY -- CALLING LIKE, "WHAT'S 419 00:20:50,884 --> 00:20:52,919 GOIN' ON? WHAT'S GOIN' ON? AND THEY KEPT SAYING, YOU KNOW, 420 00:20:52,919 --> 00:20:56,690 "WE'RE WORKING ON IT WE'RE WORKING ON IT, YOU KNOW. 421 00:20:56,690 --> 00:21:00,827 >> Reporter: SHE HAD NO IDEA ABOUT THE DETECTIVE WORK 422 00:21:00,827 --> 00:21:02,062 UNFOLDING BEHIND THE SCENES. DURING GRAHAM MACDONALD'S FIRST 423 00:21:02,062 --> 00:21:04,064 POLICE INTERVIEW, HE'D REVEALED SOMETHING THAT SENT THE 424 00:21:04,064 --> 00:21:08,702 INVESTIGATION IN A WHOLE NEW DIRECTION. 425 00:21:08,702 --> 00:21:11,571 >> WHAT DOES HE TELL YOU >> HE TELLS US THAT HE WAS WITH 426 00:21:11,571 --> 00:21:15,709 DAVID KNIGHT THE DAY OF THE MURDER 427 00:21:15,709 --> 00:21:17,811 >> Reporter: A RED FLAG. THEY'D SPOKEN AT LENGTH TO 428 00:21:17,811 --> 00:21:20,213 CARMELA'S HUSBAND THE NIGHT OF THE FIRE AND HE HAD TOLD THEM HE 429 00:21:20,213 --> 00:21:21,681 WAS AT THE HOCKEY ARENA THAT EVENING. 430 00:21:21,681 --> 00:21:25,185 THERE WAS SECURITY CAMERA FOOTAGE THAT PROVED IT 431 00:21:25,185 --> 00:21:29,089 BUT ACCORDING TO GRAHAM DAVID WASN'T TELLING THE WHOLE STORY 432 00:21:29,089 --> 00:21:31,524 >> DAVID KNIGHT NEVER MENTIONED BEING WITH ANYBODY THAT DAY. 433 00:21:31,524 --> 00:21:34,094 AND NOW GRAHAM MACDONALD'S TELLING US THAT HE WAS WITH 434 00:21:34,094 --> 00:21:35,762 DAVID AND THAT THEY WENT TO TORONTO. 435 00:21:35,762 --> 00:21:38,932 >> Reporter: DETECTIVES WERE NOW TAKING A HARD LOOK AT DAVID 436 00:21:38,932 --> 00:21:42,102 KNIGHT AND SOME OF HIS BEHAVIOR AFTER 437 00:21:42,102 --> 00:21:45,805 THE FIRE WAS RAISING EYEBROWS. CARMELA'S FRIEND TARA SAYS HE 438 00:21:45,805 --> 00:21:49,743 DIDN'T ATTEND CARMELA'S FUNERAL. >> IT WAS AWFUL TO THINK THAT 439 00:21:49,743 --> 00:21:53,646 YOUR WIFE COULD DIE SO TRAGICALLY 440 00:21:53,646 --> 00:21:56,349 AND, EVEN IF YOU WERE SEPARATED, THAT YOU WOULDN'T COME TO PAY 441 00:21:56,349 --> 00:21:59,519 YOUR RESPECTS. >> Reporter: EVEN WORSE, SHE 442 00:21:59,519 --> 00:22:01,621 SAYS HE DIDN'T LET THEIR YOUNG SONS GO. 443 00:22:01,621 --> 00:22:04,324 >> THEY WEREN'T AT THEIR OWN MOTHER'S FUNERAL 444 00:22:04,324 --> 00:22:07,927 >> NO. >> OH MY GOSH. 445 00:22:07,927 --> 00:22:11,097 >> Reporter: BUT CARMELA'S MOM WASN'T SURPRISED 446 00:22:11,097 --> 00:22:13,733 SHE KNEW THE DIVORCE PROCEEDINGS HADN'T BEEN GOING AS SMOOTHLY AS 447 00:22:13,733 --> 00:22:17,837 DAVID LET ON IN FACT, SHE SAYS IT GOT UGLY. 448 00:22:17,837 --> 00:22:22,809 DAVID WAS TELLING LIES ABOUT CARMELA ALL OVER TWN BEFORE AND 449 00:22:22,809 --> 00:22:29,149 AFTER HER DEATH. >> DAVE TOLD ALL THE HOCKEY 450 00:22:29,149 --> 00:22:30,650 PARENTS THAT SHE WAS A GAMBLER, THAT SHE HAD A BOYFRIEND, THAT 451 00:22:30,650 --> 00:22:32,752 SHE WAS TAKING DRUGS >> DO YOU THINK THE PARENTS WERE 452 00:22:32,752 --> 00:22:34,888 BUYING THIS. >> NO. 453 00:22:34,888 --> 00:22:37,524 NO, THEY WEREN'T >> Reporter: CARMELA HAD 454 00:22:37,524 --> 00:22:39,659 COMPLAINTS ABOUT DAVID, TOO. TARA TOLD INVESTIGATORS THAT 455 00:22:39,659 --> 00:22:44,364 CARMELA HAD LONG SUSPECTED HE WAS UNFAITHFUL 456 00:22:44,364 --> 00:22:46,499 HE'D STAY LATE AT WORK, COME HOME WITHOUT HIS RING -- TRAVEL 457 00:22:46,499 --> 00:22:49,102 MORE AND MORE. >> I THINK THERE WAS SOME 458 00:22:49,102 --> 00:22:52,272 RECEIPTS THERE WERE SOME STRANGE PHONE 459 00:22:52,272 --> 00:22:54,474 CALLS THAT WERE COMING IN. >> Reporter: AND A YEAR AND A 460 00:22:54,474 --> 00:22:57,544 HALF BEFORE HER MURDER -- UNDENIABLE PROOF 461 00:22:57,544 --> 00:23:00,714 CARMELA FOUND A THUMB DRIVE IN DAVID'S CAR FILLED WITH RACY 462 00:23:00,714 --> 00:23:03,616 PHOTOS SHE CONFIDED IN HER SISTER 463 00:23:03,616 --> 00:23:07,053 NANCY. >> SO THERE WAS NAKED PHOTOS 464 00:23:07,053 --> 00:23:11,424 OF-- THIS GIRL AND THERE WAS A PICTURE OF DAVE 465 00:23:11,424 --> 00:23:13,893 AND-- AND HER, AND SHE WAS KISSING HIM ON THE CHEEK 466 00:23:13,893 --> 00:23:14,961 >> SO THERE WAS NO GETTING AROUND THIS? 467 00:23:14,961 --> 00:23:16,563 >> NO. >> THIS WAS- 468 00:23:16,563 --> 00:23:21,334 >> YEAH. >> ADULTERY? 469 00:23:21,334 --> 00:23:23,436 >> YEAH, EXACTLY >> Reporter: NANCY SAID DAVID 470 00:23:23,436 --> 00:23:26,573 FINALLY ADMITTED HE HAD A GIRLFRIEND WHO LIVED NEAR THAT 471 00:23:26,573 --> 00:23:28,775 SECOND HOUSE IN FLORIDA. DAVID PROMISED CARMELA HE'D STOP 472 00:23:28,775 --> 00:23:32,946 SEEING HER IMMEDIATELY, AND THEY WENT TO MARRIAGE COUNSELING. 473 00:23:32,946 --> 00:23:34,481 BUT MONTHS LATER SHE DISCOVERED THE AFFAIR WAS STILL GOING 474 00:23:34,481 --> 00:23:37,617 STRONG >> THEN SHE JUST DECIDED-- SHE 475 00:23:37,617 --> 00:23:39,719 JUST SAID, "ENOUGH'S ENOUGH, I CAN'T DO THIS ANYMORE," AND-- 476 00:23:39,719 --> 00:23:42,722 TOLD HIM >> HOW DID HE REACT? 477 00:23:42,722 --> 00:23:45,091 >> AS SHE WAS TELLING HIM, HE WAS BEGGING FOR HER TO COME 478 00:23:45,091 --> 00:23:49,195 BACK-- AND SHE SAID, "NO, I CAN'T DO THIS ANYMORE. 479 00:23:49,195 --> 00:23:52,432 YOU'VE HAD CHANCES AND THAT'S IT." 480 00:23:52,432 --> 00:23:54,434 >> Reporter: POLICE WANTED TO HEAR MORE FROM DAVID, BUT WHEN A 481 00:23:54,434 --> 00:23:57,270 TEAM OF INVESTIGATORS WENT TO SPEAK WITH HIM, HE IGNORED THEM. 482 00:23:57,270 --> 00:23:59,873 >> THEY MEET UP WITH HIM IN THE PARKING LOT. 483 00:23:59,873 --> 00:24:03,109 HEY TRY TO ENGAGE HIM IN CONVERSATION, AND HE JUST KEEPS 484 00:24:03,109 --> 00:24:06,646 WALKING AND WOULDN'T STOP, WOULDN'T SPEAK TO THEM 485 00:24:06,646 --> 00:24:09,816 >> Reporter: AFTER THAT DAVID LAWYERED UP. 486 00:24:09,816 --> 00:24:12,285 SO INVESTIGATORS TURNED THEIR FOCUS TOWARD THE GIRLFRIEND. 487 00:24:12,285 --> 00:24:13,386 WHILE THEY'D BEEN IN FLORIDA TRYING TO SPEAK TO DAVID'S 488 00:24:13,386 --> 00:24:17,223 BROTHER, THEY'D PAID HER A VISIT. 489 00:24:17,223 --> 00:24:20,393 >> SHE SAYS THAT SHE WAS UNDER THE IMPRESSION THAT DAVID HAD 490 00:24:20,393 --> 00:24:22,529 BEEN DIVORCED FOR SIX YEARS, THAT THEY MET IN A BAR ABOUT A 491 00:24:22,529 --> 00:24:24,731 YEAR AND A HALF PRIOR. >> SHE KNEW EVERYTHING ABOUT HIS 492 00:24:24,731 --> 00:24:26,399 FLORIDA LIFE AND IT JUST SEEMS THAT SHE 493 00:24:26,399 --> 00:24:28,335 DIDN'T KNOW ANYTHING ABOUT HIS PICKERING LIFE 494 00:24:28,335 --> 00:24:32,072 >> DAVID KNIGHT WAS LIVING A DOUBLE LIFE. 495 00:24:32,072 --> 00:24:34,174 >> YES >> Reporter: THEY LEARNED HIS 496 00:24:34,174 --> 00:24:36,810 PLAN WAS TO SET UP A CONSTRUCTION BUSINESS IN FLORIDA 497 00:24:36,810 --> 00:24:42,082 AND MOVE THERE PERMANENTLY, BUT HE RAN INTO SERIOUS MONEY 498 00:24:42,082 --> 00:24:43,650 PROBLEMS IN THE MONTHS BEFORE CARMELA'S DEATH. 499 00:24:43,650 --> 00:24:47,854 >> WE'RE LEARNING THAT CARMELA WAS IN FINANCIAL DIRE AND THAT 500 00:24:47,854 --> 00:24:51,091 HE WASN'T PAYING THE MORTGAGE OR HELPING HER OUT WITH THE BOYS. 501 00:24:51,091 --> 00:24:54,694 AND SHE FILED AN EMERGENCY MOTION FOR CUSTODY OF THE 502 00:24:54,694 --> 00:24:57,731 CHILDREN, AND THAT HEARING WAS SUPPOSED TO BE HEARD ON THE 503 00:24:57,731 --> 00:24:58,932 THURSDAY AFTER HER MURDER. >> THAT WAS JUST THREE DAYS 504 00:24:58,932 --> 00:25:01,034 LATER -- >> THREE DAYS LATER. 505 00:25:01,034 --> 00:25:03,136 >> YES >> Reporter: INVESTIGATORS 506 00:25:03,136 --> 00:25:05,271 WONDERED IF DAVID HAD FOUND A SOLUTION TO HIS FINANCIAL 507 00:25:05,271 --> 00:25:08,942 PROBLEMS HE HAD TAKEN OUT TWO LIFE 508 00:25:08,942 --> 00:25:12,679 INSURANCE POLICES ON CARMELA TOTALING $850,000. 509 00:25:12,679 --> 00:25:15,949 >> DAVID HAD A LOT TO GAIN FROM CARMELA'S LIFE INSURANCE POLICY. 510 00:25:15,949 --> 00:25:18,485 >> HE DID, AND HE NEEDED THAT MONEY. 511 00:25:18,485 --> 00:25:22,722 >> THE BUSINESS DEAL WAS CLOSING SEPTEMBER 25TH, WHICH, AGAIN, 512 00:25:22,722 --> 00:25:25,892 WAS RIGHT AFTER HER MURDER >> THE TIME WAS RUNNING OUT FOR 513 00:25:25,892 --> 00:25:29,062 HIM, THAT HE NEEDED TO-- >> YES 514 00:25:29,062 --> 00:25:30,697 MAKE THIS HAPPEN >> Reporter: POLICE WERE NOW 515 00:25:30,697 --> 00:25:33,366 CONVINCED THAT DAVID KNIGHT WAS SOMEHOW INVOLVED IN HIS WIFE'S 516 00:25:33,366 --> 00:25:37,070 MURDER - BUT THEY DIDN'T HAVE ANY REAL EVIDENCE. 517 00:25:37,070 --> 00:25:40,173 THEY NEEDED MORE TIME TO VERFIY IF DAVID REALLY WAS WITH GRAHAM 518 00:25:40,173 --> 00:25:43,343 THE DAY CARMELA WAS MURDERED, BEFORE HE WAS SEEN AT THE HOCKEY 519 00:25:43,343 --> 00:25:46,479 RINK BUT TIME WAS RUNNING OUT -- 520 00:25:46,479 --> 00:25:50,817 DAVID WAS ABOUT TO BOLT. ONCE HE LAWYERED UP DETECTIVES 521 00:25:50,817 --> 00:25:51,885 GOT A COURT ORDER TO TAP HIS PHONE. 522 00:25:51,885 --> 00:25:54,788 AND THEY LEARNED HE WAS PLANNING TO MOVE TO THE SUNSHINE STATE. 523 00:25:54,788 --> 00:25:57,557 >> AND WHAT DOES THAT MEAN FOR YOUR INVESTIGATION 524 00:25:57,557 --> 00:26:00,727 >> IT WOULD HAVE BEEN VERY PROBLEMATIC TO INVESTIGATE HIM 525 00:26:00,727 --> 00:26:05,432 WHILE HE'S IN FLORIDA AND -- MIGHT'VE MEANT THAT OUR 526 00:26:05,432 --> 00:26:09,069 INVESTIGATION WAS OVER >> Reporter: DETECTIVES HAD 527 00:26:09,069 --> 00:26:11,671 SEIZED DAVID'S PASSPORT EARLIER IN THE INVESTIGATION 528 00:26:11,671 --> 00:26:13,373 BUT NOW THEY LEARNED HE HAD FOUND A WAY TO OUTSMART THEM BY 529 00:26:13,373 --> 00:26:17,077 GOING TO THE GOVERNMENT AGENCY THAT ISSUES PASSPORTS. 530 00:26:17,077 --> 00:26:21,548 >> HE THEN FALSIFIED A DOCUMENT SAYING THAT HE LOST HIS GYM BAG 531 00:26:21,548 --> 00:26:26,519 AND LOST HIS PASSPORT. CANADA REISSUED HIM A NEW 532 00:26:26,519 --> 00:26:28,655 PASSPORT >> Reporter: A NEW PASSPORT 533 00:26:28,655 --> 00:26:32,859 MEANT DAVID KNIGHT COULD SLIP THROUGH THEIR FINGERS, FOR GOOD. 534 00:26:32,859 --> 00:26:37,630 >> THIS WAS A RACE AGAINST TIME. >> IT WAS. 535 00:26:37,630 --> 00:26:40,266 >> COMING UP - DAVID HAD AN ACE UP HIS 536 00:26:40,266 --> 00:26:44,504 SLEEVE -- A PRIVATE JET AND AN UNWITTING ACCOMPLICE 537 00:26:44,504 --> 00:26:46,673 >> YOU WERE ABOUT TO TRANSPORT AN ALLEGED KILLER TO FLORIDA 538 00:26:46,673 --> 00:26:49,776 >> EXACTLY >> HE GETS ON THAT FLIGHT, WE 539 00:26:49,776 --> 00:27:09,029 HAVE NO WAY TO STOP HIM. CARMELA KNIGHT HAD BEEN 540 00:27:09,029 --> 00:27:15,035 MURDERED, DETECTIVES LEARNED HER HUSBAND DAVID, A POSSIBLE 541 00:27:15,035 --> 00:27:16,636 SUSPECT, WAS ABOUT TO HOP ON A PRIVATE JET HEADED FOR FLORIDA 542 00:27:16,636 --> 00:27:20,273 >> HE PLANNED ON NEVER RETURNING TO CANADA AGAIN. 543 00:27:20,273 --> 00:27:23,443 ONCE HE MOVED, THAT WAS IT >> Reporter: THE WIRE-TAP ON 544 00:27:23,443 --> 00:27:28,181 DAVID'S PHONE WAS PAYING OFF >> WE WERE ABLE TO LISTEN TO HIS 545 00:27:28,181 --> 00:27:31,885 PLANS NAMELY, PURCHASING A HOUSE, ENROLLING THE BOYS IN 546 00:27:31,885 --> 00:27:34,521 SCHOOL, AND WHAT HIS FUTURE PLAN WAS IN FLORIDA 547 00:27:34,521 --> 00:27:36,623 >> Reporter: THIS WAS BAD NEWS FOR DETECTIVES 548 00:27:36,623 --> 00:27:38,258 THEY'D BEEN BUILDING A CASE AGAINST HIM, BUT THEY STILL 549 00:27:38,258 --> 00:27:41,895 DIDN'T HAVE ENOUGH EVIDENCE FOR AN ARREST. 550 00:27:41,895 --> 00:27:45,065 >> IT WAS VERY, VERY TENSE BECAUSE WE THOUGHT HE WAS GONNA 551 00:27:45,065 --> 00:27:48,268 BE ABLE TO GET ON THAT JET >> Reporter: PILOT 552 00:27:48,268 --> 00:27:49,903 BASSAM AL-SARRAJ REMEMBERS THE REQUEST COMING IN FROM A 553 00:27:49,903 --> 00:27:54,074 CUSTOMER LOOKING TO FLY PRIVATE TO FLORIDA 554 00:27:54,074 --> 00:27:56,142 IMMEDIATELY. >> IT WAS ACTUALLY AN EVENING, 555 00:27:56,142 --> 00:27:59,312 AROUND 8:00 AT NIGHT AND I SAID, "OH, THIS GUY'S 556 00:27:59,312 --> 00:28:00,914 REALLY LOOKING TO GO SOMEWHERE." >> Reporter: SO BASSAM CALLED UP 557 00:28:00,914 --> 00:28:03,016 THE CUSTOMER IT WAS DAVID KNIGHT. 558 00:28:03,016 --> 00:28:05,118 >> DI SAID, "HEY, THIS IS -- THIS IS THE DEAL 559 00:28:05,118 --> 00:28:06,753 WE -- WE ACTUALLY FOUND A PLANE THAT JUST HAPPENS TO BE GOING TO 560 00:28:06,753 --> 00:28:08,822 FLORIDA. >> Reporter: DAVID WIRED 561 00:28:08,822 --> 00:28:12,258 $15,000, AND THE TRIP WAS SET FOR THE NEXT MORNING 562 00:28:12,258 --> 00:28:13,526 ARE YOU ON PINS AND NEEDLES? >> YES 563 00:28:13,526 --> 00:28:16,696 >> HE GETS ON THAT FLIGHT, WE HAVE NO WAY TO STOP HIM. 564 00:28:16,696 --> 00:28:19,933 >> Reporter: SO DETECTIVES HAD AN IDEA. 565 00:28:19,933 --> 00:28:22,135 REMEMBER DAVID HAD LIED AND GOTTEN HIMSELF A NEW PASSPORT. 566 00:28:22,135 --> 00:28:23,370 POLICE MADE A PLAN TO CONFISCATE IT BEFORE HE GOT ON THE PLANE. 567 00:28:23,370 --> 00:28:24,671 >> SO THIS CONFISCATION OF HIS PASSPORT IS -- IS BASED LESS ON 568 00:28:24,671 --> 00:28:27,340 THE MURDER INVESTIGATION AND MORE ON HIM FALSIFYING PASSPORT 569 00:28:27,340 --> 00:28:29,442 DOCUMENTS. >> RIGHT 570 00:28:29,442 --> 00:28:31,945 >> Reporter: BUT DETECTIVES DIDN'T HAVE MUCH TIME. 571 00:28:31,945 --> 00:28:35,281 THEY CONTACTED POLICE NEAR THE AIRPORT AND ASKED THEM TO SEND 572 00:28:35,281 --> 00:28:38,918 OFFICERS TO INTERCEPT DAVID. BASSAM, THE PILOT, REMEMBERS 573 00:28:38,918 --> 00:28:47,360 DAVID ARRIVING FOR HIS FLIGHT JUST AS THE PLANE WAS FUELED AND 574 00:28:47,360 --> 00:28:48,928 READY TO GO. >> HE SHOWS UP 575 00:28:48,928 --> 00:28:51,598 HE'S GOT HIS DOG HE'S GOT HIS LUGGAGE 576 00:28:51,598 --> 00:28:54,234 WE PUT THE LUGGAGE IN THE PLANE. >> Reporter: AND DOES 577 00:28:54,234 --> 00:28:55,101 DAVID KNIGHT HAVE ANY IDEA THAT - 578 00:28:55,101 --> 00:28:56,970 >> NOTHING >> Reporter: THAT THE POLICE ARE 579 00:28:56,970 --> 00:28:57,704 IN THERE? OR THAT YOU'RE TAKING-- 580 00:28:57,704 --> 00:28:58,605 >> NO IDEA >> Reporter: AND THAT'S WHEN THE 581 00:28:58,605 --> 00:29:00,240 POLICE STEPPED IN. >> THE POLICE OFFICER COMES OUT 582 00:29:00,240 --> 00:29:01,608 AND SAYS -- "I'M SEIZING YOUR PASSPORT ON BEHALF OF THE 583 00:29:01,608 --> 00:29:03,710 GOVERNMENT OF CANADA." >> Reporter: OH, MY GOSH 584 00:29:03,710 --> 00:29:06,179 WHAT DID DAVID KNIGHT SAY? >> HE FREAKED OUT. 585 00:29:06,179 --> 00:29:08,481 >> Reporter: NO PASSPORT, NO CHANCE OF ESCAPING TO THE UNITED 586 00:29:08,481 --> 00:29:11,651 STATES YOU WERE ABOUT TO TRANSPORT AN 587 00:29:11,651 --> 00:29:15,355 ALLEGED KILLER TO FLORIDA. >> EXACTLY 588 00:29:15,355 --> 00:29:16,856 >> Reporter: POLICE LET DAVID GO, BUT HE HAD TO KNOW 589 00:29:16,856 --> 00:29:20,060 DETECTIVES WERE ZEROING IN ON HIM. 590 00:29:20,060 --> 00:29:22,796 AND IN FACT, THEY WERE MAKING PROGRESS IN OTHER PARTS OF THE 591 00:29:22,796 --> 00:29:25,865 CASE THEY HAD IDENTIFIED THE MYSTERY 592 00:29:25,865 --> 00:29:28,668 MAN IN THE BLACK SUV >> IT WAS DAVID'S EX-BUSINESS 593 00:29:28,668 --> 00:29:30,904 PARTNER. >> Reporter: THE EX-PARTNER TOLD 594 00:29:30,904 --> 00:29:33,273 DETECTIVES DAVID HAD STOLEN $200,000 FROM HIM. 595 00:29:33,273 --> 00:29:36,409 IT WAS MONEY THEY WERE GOING TO USE TO START A CONSTRUCTION 596 00:29:36,409 --> 00:29:39,579 BUSINESS >> Reporter: THIS BUSINESS 597 00:29:39,579 --> 00:29:42,215 PARTNER MUST'VE BEEN ANGRY >> HE WAS, YES 598 00:29:42,215 --> 00:29:44,150 >> Reporter: ANGRY, YES. BUT THE MORE THEY INVESTIGATED, 599 00:29:44,150 --> 00:29:46,453 THE LESS THEY THOUGHT HE HAD ANYTHING TO DO WITH CARMELA'S 600 00:29:46,453 --> 00:29:48,555 MURDER THEY BELIEVED HE SHOWED UP IN 601 00:29:48,555 --> 00:29:53,360 THE BACKYARD TO CONFRONT DAVE, NOT SCARE CARMELA. 602 00:29:53,360 --> 00:29:56,463 THAT LEFT JUST DAVID, MATT, AND GRAHAM, AND THEY WEREN'T 603 00:29:56,463 --> 00:29:59,199 TALKING. SO DETECTIVES KNEW THEY NEEDED 604 00:29:59,199 --> 00:30:00,667 TO DO SOMETHING BIG. >> WE DECIDED TO DO AN 605 00:30:00,667 --> 00:30:02,769 UNDERCOVER OPERATION WITH GRAHAM MACDONALD 606 00:30:02,769 --> 00:30:04,804 >> Reporter: GRAHAM IS THE TARGET 607 00:30:04,804 --> 00:30:06,473 >> YES >> Reporter: THE PLAN WAS FOR AN 608 00:30:06,473 --> 00:30:09,109 UNDERCOVER OFFICER TO BEFRIEND GRAHAM 609 00:30:09,109 --> 00:30:11,211 >> FOR THEM TO BECOME FRIENDLY, FOR THEM TO BUILD SOME RAPPORT, 610 00:30:11,211 --> 00:30:13,346 AND YOU KNOW, PLAY POOL TOGETHER AND -- AND THAT SORTA THING. 611 00:30:13,346 --> 00:30:17,550 THAT'S -- THAT'S EVENTUALLY WHAT ENDED UP HAPPENING." 612 00:30:17,550 --> 00:30:20,720 >> Reporter: THEY BECAME FRIENDS. 613 00:30:20,720 --> 00:30:27,060 GRAHAM RIGHT AWAY TOLD HIM THAT, LOOK, THE POLICE ARE LOOKING AT 614 00:30:27,060 --> 00:30:29,696 ME FOR THIS MURDER THE UNDERCOVER OFFICER SAID HE 615 00:30:29,696 --> 00:30:32,365 KNEW SOMEONE WHO COULD HELP HIM. HE INTRODUCED GRAHAM TO "UNCLE 616 00:30:32,365 --> 00:30:35,535 DAN. ANOTHER UNDERCOVER OFFICER WHO 617 00:30:35,535 --> 00:30:39,239 WAS POSING AS A MAN WHO HAD A HISTORY OF FIXING PEOPLE'S 618 00:30:39,239 --> 00:30:41,441 TROUBLES WITH THE LAW. "UNCLE DAN" AGREED TO SPEAK WITH 619 00:30:41,441 --> 00:30:43,977 US AS LONG AS WE DIDN'T SHOW HIS FACE 620 00:30:43,977 --> 00:30:46,680 YOU'RE NOT FRIENDS WITH GRAHAM MACDONALD 621 00:30:46,680 --> 00:30:49,616 YOU DON'T WANNA BE FRIENDS WITH HIM, BUT YET YOU HAVE TO 622 00:30:49,616 --> 00:30:52,385 CONVINCE HIM OF THAT >> IT'S DONE THROUGH DIFFERENT 623 00:30:52,385 --> 00:30:53,953 SCENARIOS THROUGHOUT THIS WHOLE OPERATION JUST TO SHOW THAT, YOU 624 00:30:53,953 --> 00:31:01,961 KNOW, I WAS SOMEBODY TRUSTWORTHY. 625 00:31:01,961 --> 00:31:03,196 >> Reporter: UNDERCOVER OFFICER "UNCLE DAN" INVITED GRAHAM AND 626 00:31:03,196 --> 00:31:04,397 HIS FRIEND OUT FOR A DAY OF ICE-FISHING ON LAKE SIMCOE, BUT 627 00:31:04,397 --> 00:31:08,234 SOMETHING CONVENIENTLY HAPPENED ON THE WAY TO THE LAKE 628 00:31:08,234 --> 00:31:10,337 >> WHILE THEY WERE ON THEIR WAY TO THE HUT, THEY WERE PULLED 629 00:31:10,337 --> 00:31:14,074 OVER BY THE POLICE FOR A TRAFFIC STOP 630 00:31:14,074 --> 00:31:17,711 THE POLICE OFFICER RAN BOTH OF THEIR NAMES THROUGH THE POLICE 631 00:31:17,711 --> 00:31:21,414 SYSTEM, AND GRAHAM MACDONALD HAD A RETURN OF BEING A SUBJECT IN A 632 00:31:21,414 --> 00:31:24,484 HOMICIDE >> Reporter: THEY HOPED 633 00:31:24,484 --> 00:31:26,386 MENTIONING CARMELA'S MURDER MIGHT GET GRAHAM OUT OF HIS 634 00:31:26,386 --> 00:31:29,089 COMFORT ZONE >> AS A RESULT OF THAT TRAFFIC 635 00:31:29,089 --> 00:31:30,924 STOP, GRAHAM MACDONALD WAS -- APPEARED TO BE VERY RATTLED BY 636 00:31:30,924 --> 00:31:34,627 THE FACT THAT THE POLICE HAD NAMED HIM. 637 00:31:34,627 --> 00:31:37,263 WHAT HE THOUGHT, WAS A SUSPECT >> Reporter: EVENTUALLY, THE 638 00:31:37,263 --> 00:31:39,799 POLICE LET THEM GET ON THEIR WAY. 639 00:31:39,799 --> 00:31:41,468 EVERYTHING WAS NOW RIDING ON THIS MEETING IN THE ICE FISHING 640 00:31:41,468 --> 00:31:44,104 HUT. COULD "UNCLE DAN" GET GRAHAM TO 641 00:31:44,104 --> 00:31:46,339 TAKE THE BAIT? >> SO WHEN I CAME INTO THE HUT, 642 00:31:46,339 --> 00:31:49,909 GRAHAM WAS SITTING IN THE CORNER 643 00:31:49,909 --> 00:31:53,113 AND I SAID TO HIM, "I HEARD YOU HAVE A PROBLEM." 644 00:31:53,113 --> 00:31:54,681 >> THE PROBLEM I'M RUNNING INTO NOW THEY'RE STARTING TO THROW MY 645 00:31:54,681 --> 00:31:56,883 NAME AROUND. I DON'T KNOW IF THEY'RE USING ME 646 00:31:56,883 --> 00:31:58,885 AS A SCAPE GOAT, OR WHATEVER THE CASE MAY BE, BUT - 647 00:31:58,885 --> 00:32:00,653 >> SO ARE YOU TELLING ME THAT YOU HAD NOTHING TO DO WITH THIS 648 00:32:00,653 --> 00:32:02,756 WHATSOEVER? ARE YOU TELLING ME THAT 649 00:32:02,756 --> 00:32:04,758 >> I CAN'T >> WHAT DO YOU MEAN, YOU CAN'T 650 00:32:04,758 --> 00:32:08,862 >> I CAN'T SAY I NEVER HAD NOTHING TO DO WITH IT. 651 00:32:08,862 --> 00:32:13,667 >> SO I ASKED HIM, "DID YOU KILL HER? 652 00:32:13,667 --> 00:32:15,769 >> COMING UP - >> I COULD TELL THAT HE HAD 653 00:32:15,769 --> 00:32:19,239 KINDA TEARS IN HIS EYES. SOMETHING WAS REALLY BOTHERING 654 00:32:19,239 --> 00:32:23,943 HIM, AND HE WANTED TO TALK >> Reporter: CAN "UNCLE DAN" 655 00:32:23,943 --> 00:32:27,347 REEL IN A SUSPECTED KILLER >> I WAS SHOCKED 656 00:32:27,347 --> 00:32:27,914 >> I WAS SHOCKED I DIDN'T EXPECT THAT TO HAPPEN 657 00:32:44,764 --> 00:32:47,300 COLD ICE FISHING HUT, GRAHAM MACDONALD WAS UNKNOWINGLY 658 00:32:47,300 --> 00:32:50,503 FACE TO FACE WITH AN UNDERCOVER OFFICER. 659 00:32:50,503 --> 00:32:52,272 >> I COULD TELL THAT HE HAD KINDA TEARS IN HIS EYES. 660 00:32:52,272 --> 00:32:54,708 SOMETHING WAS REALLY BOTHERING HIM, AND HE WANTED TO TALK 661 00:32:54,708 --> 00:33:00,046 >> Reporter: DETECTIVES JENNINGS WAITED NEARBY WITH BAITED 662 00:33:00,046 --> 00:33:02,615 BREATH >> >> I WAS IN A VEHICLE ON THE 663 00:33:02,615 --> 00:33:04,250 SHORE JUST OVER THERE OFF TO A PARKING LOT, LISTENING LIVE. 664 00:33:04,250 --> 00:33:08,421 >> I ASKED HIM, "DID YOU KILL HER? 665 00:33:08,421 --> 00:33:10,523 AND HE NODDED YES. >> I WAS SHOCKED 666 00:33:10,523 --> 00:33:14,728 I -- I DIDN'T EXPECT THAT TO HAPPEN 667 00:33:14,728 --> 00:33:17,931 AND IT WAS A HUGE BREAKTHROUGH >> Reporter: THEY FINALLY HAD 668 00:33:17,931 --> 00:33:20,633 THE FIRST PIECE OF THE PUZZLE, BUT DETECTIVES BELIEVED GRAHAM 669 00:33:20,633 --> 00:33:22,068 HADN'T ACTED ALONE AND WERE CERTAIN HIS 670 00:33:22,068 --> 00:33:24,771 "CONFESSION" WASN'T THE WHOLE STORY. 671 00:33:24,771 --> 00:33:27,907 UNCLE DAN NEEDED MORE, BUT HE WAS CAREFUL NOT TO PUSH GRAHAM 672 00:33:27,907 --> 00:33:35,315 INSTEAD, HE ENDED THE MEETING. A WEEK LATER, 'UNCLE DAN' 673 00:33:35,315 --> 00:33:36,716 INVITED GRAHAM TO HIS OFFICE >> BASICALLY TO SIT HIM DOWN AND 674 00:33:36,716 --> 00:33:40,120 GET AS MUCH DETAIL OUT OF HIM AS I POSSIBLY COULD 675 00:33:40,120 --> 00:33:41,755 >> Reporter: INVESTIGATORS HAD COME UP WITH A CLEVER WAY TO GET 676 00:33:41,755 --> 00:33:46,926 GRAHAM TO GIVE A FULL CONFESSION 677 00:33:46,926 --> 00:33:49,562 >> WE DEVELOPED A SCENARIO WHERE I SAID, "I THINK I MIGHT BE ABLE 678 00:33:49,562 --> 00:33:53,967 TO FIX THIS PROBLEM FOR YOU. AND I SAID, "I HAVE A GOOD 679 00:33:53,967 --> 00:33:56,436 FRIEND OF MINE," WHO'S DYING OF CANCER AND DOESN'T HAVE LONG TO 680 00:33:56,436 --> 00:34:01,174 LIVE "HE WILL TAKE THE RAP FOR YOU. 681 00:34:01,174 --> 00:34:04,344 HE WILL CONFESS TO IT, BUT YOU NEED TO ENSURE THAT HIS CHILDREN 682 00:34:04,344 --> 00:34:07,047 WILL BE LOOKED AFTER $10,000 TRUST FUNDS FOR EACH 683 00:34:07,047 --> 00:34:09,082 CHILD. AND HE'LL DO THIS FOR YOU. 684 00:34:09,082 --> 00:34:11,718 >> Reporter: AND LIKE A HOLLYWOOD MOVIE, THEY USED 685 00:34:11,718 --> 00:34:18,058 MAKEUP TO DISGUISE AN UNDERCOVER OFFICER NAMED JAMES TO PLAY THE 686 00:34:18,058 --> 00:34:20,160 PART OF THE DYING MAN. WHEN HE SHOWED UP AT THE OFFICE, 687 00:34:20,160 --> 00:34:22,262 IN A WHEELCHAIR, THEY TOLD GRAHAM, IF JAMES WAS TAKING THE 688 00:34:22,262 --> 00:34:27,067 FALL FOR THE MURDER, HE NEEDED TO KNOW EVERY LAST DETAIL. 689 00:34:27,067 --> 00:34:28,234 >> I HAVE HIM GO THROUGH HIS INVOLVEMENT, HOW IT WAS PLANNED, 690 00:34:28,234 --> 00:34:32,305 HOW IT WAS EXECUTED. >> Reporter: AND THAT'S WHEN 691 00:34:32,305 --> 00:34:39,179 GRAHAM LAID IT ALL OUT, AND NOT ONLY HIS INVOLVMENT BUT 692 00:34:39,179 --> 00:34:41,648 DAVID KNIGHT'S, TOO. HE SAID DAVID HAD HIRED HIM TO 693 00:34:41,648 --> 00:34:42,982 KILL CARMELA >> HE SAID DAVID WANTED HIS WIFE 694 00:34:42,982 --> 00:34:44,451 GONE GRAHAM DID SAY THERE WAS A LOT 695 00:34:44,451 --> 00:34:48,588 OF PLANNING. >> Reporter: GRAHAM TOLD THEM ON 696 00:34:48,588 --> 00:34:49,756 THE DAY OF THE MURDER, DAVID WENT TO FILL UP GAS CANS TO BE 697 00:34:49,756 --> 00:34:52,392 USED TO SET THE FIRE HE SAID DAVID LATER TOOK HIM TO 698 00:34:52,392 --> 00:34:54,527 THE HOUSE, AND LET HIM IN. HE THEN HID IN THE BATHROOM 699 00:34:54,527 --> 00:34:57,664 WAITING FOR CARMELA TO COME HOME 700 00:34:57,664 --> 00:35:02,402 >> SHE CAME IN THROUGH THE GARAGE AND HE ATTACKED HER FROM 701 00:35:02,402 --> 00:35:04,537 BEHIND AND SHE FOUGHT FOR HER LIFE. 702 00:35:04,537 --> 00:35:07,674 THEY RACED AROUND THE KITCHEN ISLAND 703 00:35:07,674 --> 00:35:10,877 HE FINALLY GOT HER DOWN ON THE GROUND AND STRANGLED HER 704 00:35:10,877 --> 00:35:14,047 >> Reporter: HE SAID HE TRIED TO MAKE IT LOOK LIKE CARMELA HAD 705 00:35:14,047 --> 00:35:16,116 OVERDOSED. >> HE PLACED THE TOURNIQUET ON 706 00:35:16,116 --> 00:35:18,885 CARMELA'S BODY AND TRIED TO INJECT HER WITH COCAINE. 707 00:35:18,885 --> 00:35:21,888 LEFT THE SYRINGE IN THE -- IN HER ARM. 708 00:35:21,888 --> 00:35:25,291 >> Reporter: AND THEN WHAT HAPPENED NEXT? 709 00:35:25,291 --> 00:35:28,361 >> THEN HE DRAGGED HER TO THE GARAGE, AND PUT HER FACE-DOWN IN 710 00:35:28,361 --> 00:35:34,067 THE GARAGE AND HE WAITED. 711 00:35:34,067 --> 00:35:35,568 HE WAITED FOR DARKNESS, SO THAT HE COULD LIGHT THE FIRE. 712 00:35:35,568 --> 00:35:40,840 >> Reporter: THIS WAS ALL ABOUT MONEY FOR -- GRAHAM? 713 00:35:40,840 --> 00:35:45,078 >> WELL HE WAS PROMISED $100,000 FROM DAVID KNIGHT AND A 714 00:35:45,078 --> 00:35:48,248 LIFE IN FLORIDA. >> Reporter: NOW INVESTIGATORS 715 00:35:48,248 --> 00:35:50,850 HAD TO BE SURE GRAHAM'S CONFESSION CHECKED OUT 716 00:35:50,850 --> 00:35:52,952 THEY EASILY FOUND THE VIDEO OF DAVID AT THE GAS STATION FILLING 717 00:35:52,952 --> 00:35:56,089 THE GAS CANS AND THEY DISCOVERED ANOTHER 718 00:35:56,089 --> 00:35:59,492 VIDEO THAT PROVED GRAHAM WAS WITH DAVID ON THE DAY OF THE 719 00:35:59,492 --> 00:36:01,394 MURDER THAT'S HIM IN THE PASSENGER 720 00:36:01,394 --> 00:36:04,631 SEAT GRAHAM ALSO TOLD UNCLE DAN THAT 721 00:36:04,631 --> 00:36:06,700 HE AND DAVID BOUGHT BURNER PHONES, SO DETECTIVES TOOK 722 00:36:06,700 --> 00:36:10,203 ANOTHER LOOK AT THE VIDEO SUPPORTING DAVID KNIGHT'S ALIBI. 723 00:36:10,203 --> 00:36:11,938 >> Reporter: THIS IS DAVID KNIGHT AT THE ICE HOCKEY 724 00:36:11,938 --> 00:36:14,574 RINK THE NIGHT OF THE MURDER >> THAT'S CORRECT. 725 00:36:14,574 --> 00:36:16,042 YOU CAN SEE HE'S -- HE'S GOT HIS ONE HAND UP AND HE'S SPEAKING ON 726 00:36:16,042 --> 00:36:17,744 A CELL PHONE >> Reporter: WHILE HE'S SKATING 727 00:36:17,744 --> 00:36:19,879 AROUND >> THAT'S RIGHT. 728 00:36:19,879 --> 00:36:23,049 THE TIME STAMPS ON THE CALLS THERE ARE ACTUALLY RIGHT AFTER 729 00:36:23,049 --> 00:36:24,084 CARMELA'S MURDER >> Reporter: PHONE RECORDS 730 00:36:24,084 --> 00:36:26,186 PROVED IT WAS GRAHAM ON THE LINE 731 00:36:26,186 --> 00:36:31,458 NOW, THERE WAS JUST ONE LAST BOX TO CHECK 732 00:36:31,458 --> 00:36:34,661 IN ORDER TO ARREST DAVID, INVESTIGATORS NEEDED PROOF HE 733 00:36:34,661 --> 00:36:37,230 PAID GRAHAM FOR THE MURDER AS LUCK WOULD HAVE IT, DAVID 734 00:36:37,230 --> 00:36:40,934 HADN'T GIVEN HIM A DIME YET. THIS WAS THEIR OPENING 735 00:36:40,934 --> 00:36:44,637 >> THE UNDERCOVERS TOLD GRAHAM, THAT, "YOU KNOW, YOU WERE 736 00:36:44,637 --> 00:36:46,740 PROMISED $100,000, AND HE HASN'T PAID YOU ANYTHING, SO YOU NEED 737 00:36:46,740 --> 00:36:49,909 TO GO COLLECT. >> Reporter: DETECTIVES PUT A 738 00:36:49,909 --> 00:36:53,646 TAIL ON DAVID AND FOUND HIS FAVORITE WATERING HOLE 739 00:36:53,646 --> 00:36:56,249 GRAHAM'S FRIENDS, THE UNDERCOVER OFFICERS, CONVINCED HIM TO PAY 740 00:36:56,249 --> 00:36:59,419 DAVID A SUPRISE VISIT AT THE BAR. 741 00:36:59,419 --> 00:37:03,490 WHEN HE DID, OTHER UNDERCOVER OFFICERS WERE SCATTERED AROUND 742 00:37:03,490 --> 00:37:04,724 INSIDE AND UNBEKNOWST TO DAVID, AND 743 00:37:04,724 --> 00:37:08,361 EVEN TO GRAHAM, GRAHAM WAS RECORDING IT ALL 744 00:37:08,361 --> 00:37:10,463 >> WE DID PROVIDE HIM WITH SOMETHING THAT HE WASN'T AWARE 745 00:37:10,463 --> 00:37:12,565 THAT WAS ACTUALLY A RECORDING DEVICE 746 00:37:12,565 --> 00:37:14,701 AND THERE WERE ALSO OTHER RECORDING DEVICES IN THE AREA. 747 00:37:14,701 --> 00:37:18,905 >> Reporter: SO YOU'RE ABOUT TO CAPTURE THIS WHOLE CONVERSATION 748 00:37:18,905 --> 00:37:21,574 ON TAPE? >> HOPEFULLY 749 00:37:21,574 --> 00:37:25,245 YES. >> Reporter: WHAT HAPPENS WHEN 750 00:37:25,245 --> 00:37:28,448 GRAHAM APPROACHES HIM? >> THEY TALK 751 00:37:28,448 --> 00:37:31,051 HE WAS QUITE SHOCKED TO SEE GRAHAM WALK BACK INTO HIS LIFE 752 00:37:31,051 --> 00:37:34,354 AGAIN. AND I THINK HIS FIRST THING WAS 753 00:37:34,354 --> 00:37:36,589 LIKE, "WHAT ARE YOU DOING HERE?" >> Reporter: DURING A BRIEF 754 00:37:36,589 --> 00:37:39,492 CONVERSATION, GRAHAM TOLD DAVID ALL ABOUT UNCLE DAN. 755 00:37:39,492 --> 00:37:41,661 AND THE PLAN TO HAVE A DYING MAN TAKE THE FALL FOR THE MURDER 756 00:37:41,661 --> 00:37:45,298 DAVID BOUGHT IT HOOK LINE AND SINKER AND TOLD GRAHAM TO COME 757 00:37:45,298 --> 00:37:50,570 BACK A FEW DAYS LATER. >> THEY MADE AN ARRANGEMENT TO 758 00:37:50,570 --> 00:37:52,872 MEET THE FOLLOWING THURSDAY, AND THAT WAS WHEN DAVID KNIGHT PAID 759 00:37:52,872 --> 00:37:54,974 HIM $5,000 >> I WANT SOMEBODY ELSE TO COUNT 760 00:37:54,974 --> 00:37:56,910 THIS >> Reporter: NEARLY SIX MONTHS 761 00:37:56,910 --> 00:38:01,147 AFTER CARMELA WAS MURDERED, INVESTIGATORS HAD THEIR MEN. 762 00:38:01,147 --> 00:38:14,361 DAVID KNIGHT, GRAHAM MACDONALD, AND MATTHEW KNIGHT WERE ALL 763 00:38:14,361 --> 00:38:15,495 ARRESTED FOR THE MURDER PLOT NANCY WHO HAD LONG SUSPECTED 764 00:38:15,495 --> 00:38:17,030 DAVID PLAYED A ROLE IN CARMELA'S MURDER, FELT VINDICATED. 765 00:38:17,030 --> 00:38:18,298 >> Reporter: DID IT GIVE YOU SOME RELIEF, EVEN FOR JUST A 766 00:38:18,298 --> 00:38:19,599 MOMENT, AFTER EVERYTHING YOU'D BEEN THROUGH 767 00:38:19,599 --> 00:38:21,701 >> OH, YEAH. DEFINITELY 768 00:38:21,701 --> 00:38:22,869 IT DID LIKE A HURRAH KIND OF, LIKE, YOU 769 00:38:22,869 --> 00:38:24,337 KNOW, FINALLY THEY CAUGHT HIM. >> Reporter: AFTER A 4-MONTH 770 00:38:24,337 --> 00:38:27,507 TRIAL, DAVID KNIGHT WAS CONVICTED OF FIRST-DEGREE 771 00:38:27,507 --> 00:38:30,310 MURDER, CONSPIRACY TO COMMIT MURDER AND ARSON 772 00:38:30,310 --> 00:38:32,779 GRAHAM MACDONALD WAS CONVICTED OF THE SAME CRIMES 773 00:38:32,779 --> 00:38:37,917 EACH WAS SENTENCED TO LIFE IN PRISON WITH A CHANCE OF PAROLE 774 00:38:37,917 --> 00:38:39,652 AFTER 25 YEARS MATTHEW KNIGHT PLEADED GUILTY TO 775 00:38:39,652 --> 00:38:43,923 ACCESSORY AFTER THE FACT TO MURDER 776 00:38:43,923 --> 00:38:47,093 HE SPENT A YEAR BEHIND BARS. IT WAS LESS TIME THAN DETECTIVES 777 00:38:47,093 --> 00:38:49,329 HAD HOPED FOR. THEY DID, HOWEVER, THINK 778 00:38:49,329 --> 00:38:53,433 DAVID KNIGHT GOT WHAT HE DESERVED 779 00:38:53,433 --> 00:38:56,503 >> Reporter: INSTEAD OF LIVING HIS NEW LIFE IN FLORIDA, HE'S IN 780 00:38:56,503 --> 00:39:01,875 AN EIGHT-BY-TEN CELL >> HE IS 781 00:39:01,875 --> 00:39:03,009 >> IT'S WHERE HE SHOULD BE >> Reporter: FRANCA COULDN'T 782 00:39:03,009 --> 00:39:06,613 AGREE MORE >> I WANT HIM TO SUFFER, AND 783 00:39:06,613 --> 00:39:09,249 EVERY DAY OF HIS SUFFERING, I WANT HIM -- I WANT HIM TO SEE 784 00:39:09,249 --> 00:39:15,555 CARM'S EYES. AND THINK OF WHAT HE DID, HOW HE 785 00:39:15,555 --> 00:39:18,758 DESTROYED A FAMILY >> I DIDN'T WANNA BELIEVE IT 786 00:39:18,758 --> 00:39:20,460 AND I'D BELIEVED HIM FOR SO LONG 787 00:39:20,460 --> 00:39:26,099 AND JUST CAME TO THE REALIZATION THAT HE RUINED MY CHILDHOOD. 788 00:39:26,099 --> 00:39:28,201 AND HE PUT ME IN A PLACE I DON'T KNOW IF I'LL EVER GET OUT OF 789 00:39:28,201 --> 00:39:30,870 >> Reporter: IT MUST JUST FEEL LIKE A BAD DREAM SOMETIMES 790 00:39:30,870 --> 00:39:36,676 >> SOMETIMES, YEAH I WISH IT WAS, BUT 791 00:39:36,676 --> 00:39:39,279 UNFORTUNATELY, IT'S NOT. >> Reporter: DYLAN NOW LIVES 792 00:39:39,279 --> 00:39:42,482 WITH HIS AUNT NANCY. I'M GLAD THAT YOU HAD A SOFT 793 00:39:42,482 --> 00:39:46,152 LANDING WITH YOUR AUNT AND UNCLE AND THAT YOU FOUND A HOME, WHERE 794 00:39:46,152 --> 00:39:48,254 YOU -- >> YEAH. 795 00:39:48,254 --> 00:39:50,357 >> Reporter: YOU HAVE TWO LITTLE COUSINS. 796 00:39:50,357 --> 00:39:51,958 >> YEAH. >> Reporter: THAT YOU'RE, LIKE, 797 00:39:51,958 --> 00:39:53,560 A BIG BROTHER TO NOW >> YEAH. 798 00:39:53,560 --> 00:39:54,761 PRETTY MUCH. PRETTY MUCH. 799 00:39:54,761 --> 00:39:55,795 AND THEY -- YEAH THEY, YOU KNOW, THEY MAKE ME 800 00:39:55,795 --> 00:39:59,332 HAPPY. DEFINITELY BRING ME JOY IN LIFE. 801 00:39:59,332 --> 00:40:02,002 >> Reporter: NANCY'S FRIENDS GIFTED HER A NECKLACE IN HER 802 00:40:02,002 --> 00:40:05,405 SISTER'S HANDWRITING A KEEPSAKE SHE SAYS IS SO 803 00:40:05,405 --> 00:40:09,409 MEANINGFUL THAT SHE DECIDED TO GET ONE FOR HER MOM TOO. 804 00:40:09,409 --> 00:40:13,880 THEY WEAR THEM OFTEN, KEEPING CARMELA CLOSE TO THEIR HEARTS. 805 00:40:13,880 --> 00:40:16,216 AND THEY GATHER EVERY YEAR TO CELEBRATE CARMELA'S BIRTHDAY 806 00:40:16,216 --> 00:40:18,885 THEY MAKE A HOME-COOKED MEAL TOGETHER 807 00:40:18,885 --> 00:40:20,487 FRANCA STILL SEES HER DAUGHTER IN HER GRANDSONS 808 00:40:20,487 --> 00:40:27,761 DO YOU THINK CARMELA LIVES ON THROUGH HER BOYS 809 00:40:27,761 --> 00:40:28,795 >> SHE DOES. DYLAN LOOKS EXACTLY LIKE HER 810 00:40:28,795 --> 00:40:29,696 >> Reporter: IS THE FUTURE BRIGHT FOR THEM? 811 00:40:29,696 --> 00:40:31,164 >> I HOPE SO I HOPE SO. 812 00:40:31,164 --> 00:40:39,139 THEY HAVE A LOT OF CARM, THANK GOD. 813 00:40:39,139 --> 00:40:42,909 >> THAT'S ALL FOR THIS EDITION OF "DATELINE." 814 00:40:42,909 --> 00:40:45,111 WE'LL SEE YOU AGAIN NEXT FRIDAY AT 9/8 CENTRAL AND, OF COURSE, 815 00:40:45,111 --> 00:40:48,481 I'LL SEE YOU EACH WEEKNIGHT FOR "NBC NIGHTLY NEWS. 816 00:40:48,481 --> 00:40:51,451 I'M LESTER HOLT. FOR ALL OF US AT NBC NEWS, 817 00:40:51,451 --> 00:40:51,685 FOR ALL OF US AT NBC NEWS, GOODNIGHT.