1 00:00:08,541 --> 00:00:10,442 [female narrator] a young suburban couple 2 00:00:10,511 --> 00:00:13,812 Gunned down on their front porch. 3 00:00:13,881 --> 00:00:16,915 People heard things they described as fireworks 4 00:00:16,984 --> 00:00:18,851 In the middle of the night. 5 00:00:18,919 --> 00:00:22,287 [multiple gunshots] 6 00:00:23,224 --> 00:00:25,557 It looked like there was some kind of a gun fight. 7 00:00:25,559 --> 00:00:26,691 [narrator] at the crime scene, 8 00:00:26,760 --> 00:00:29,828 There's another shocking discovery. 9 00:00:30,998 --> 00:00:32,464 I was very tense. 10 00:00:32,533 --> 00:00:35,134 We didn't know if there was more victims. 11 00:00:35,202 --> 00:00:37,702 [narrator] evidence suggests they knew an attack 12 00:00:37,771 --> 00:00:39,238 Might be coming. 13 00:00:41,142 --> 00:00:43,375 There was a loaded shotgun behind the door. 14 00:00:44,311 --> 00:00:47,046 That told me they thought that they needed 15 00:00:47,114 --> 00:00:48,814 Some kind of protection. 16 00:00:51,885 --> 00:00:55,187 [narrator] uncovering the truth behind the brutal slayings 17 00:00:55,255 --> 00:00:59,358 Reveals a killer hell bent on revenge. 18 00:01:00,694 --> 00:01:03,762 I don't think she liked the fact that he was happy without her. 19 00:01:04,865 --> 00:01:07,098 It was the straw that broke the camel's back. 20 00:01:07,568 --> 00:01:10,535 [narrator] when police are ready to move on their suspects, 21 00:01:10,537 --> 00:01:12,604 They completely vanish. 22 00:01:13,207 --> 00:01:15,174 [steve] they then cut and dyed their hair. 23 00:01:15,242 --> 00:01:17,075 They were trying to disappear. 24 00:01:17,744 --> 00:01:19,244 [darrell] no one knew where they were at. 25 00:01:19,312 --> 00:01:22,381 Nobody knew what they might do next. 26 00:01:23,217 --> 00:01:25,551 So we were on high alert. 27 00:01:28,689 --> 00:01:34,593 [theme music] 28 00:01:40,066 --> 00:01:43,268 [narrator] willard, missouri is a quiet residential area 29 00:01:43,270 --> 00:01:46,371 12 miles outside springfield. 30 00:01:46,439 --> 00:01:50,175 But at 9:00 a.M. On November 14, 2020, 31 00:01:50,243 --> 00:01:52,911 This normally peaceful town is shaken 32 00:01:52,979 --> 00:01:55,314 By a horrifying discovery. 33 00:01:57,951 --> 00:02:00,785 [steve] 911 dispatch received a call from a neighbor. 34 00:02:00,854 --> 00:02:02,454 She said that she looked through her window 35 00:02:02,523 --> 00:02:05,357 While she was serving breakfast to her family, 36 00:02:05,425 --> 00:02:08,727 And she seen her neighbors laying down on the ground 37 00:02:08,795 --> 00:02:11,330 On the front porch. She went to go check. 38 00:02:14,768 --> 00:02:17,970 And she found two bodies laying on the front porch, 39 00:02:18,038 --> 00:02:20,438 Blood all over the ground, 40 00:02:20,507 --> 00:02:23,175 And there was a gun laying just outside of his hand. 41 00:02:27,247 --> 00:02:29,581 [narrator] 911 operators immediately send 42 00:02:29,650 --> 00:02:32,351 First responders to the address. 43 00:02:34,588 --> 00:02:36,788 I wasn't sure if I was going to a murder-suicide 44 00:02:36,857 --> 00:02:38,990 Or what exactly it was. 45 00:02:39,593 --> 00:02:40,993 When I first arrived at the crime scene, 46 00:02:41,061 --> 00:02:43,295 The reporting party, she was there. 47 00:02:43,363 --> 00:02:46,298 She pointed to the bodies that were on the steps. 48 00:02:46,366 --> 00:02:48,667 She said that she was afraid to go to them, 49 00:02:48,735 --> 00:02:51,403 But she believed that they'd been there for quite a while. 50 00:02:52,039 --> 00:02:56,041 The male victim had several gunshot wounds to his head, 51 00:02:56,109 --> 00:02:58,377 And also to his torso and arm. 52 00:02:59,580 --> 00:03:02,747 The female subject also had multiple gunshot wounds 53 00:03:02,749 --> 00:03:06,285 To her back and also to her head. 54 00:03:06,287 --> 00:03:07,819 He had a holster on his right side 55 00:03:07,887 --> 00:03:11,690 And his right hand was down just by his gun. 56 00:03:12,092 --> 00:03:15,227 It made me think there was some kind of a gun fight. 57 00:03:16,997 --> 00:03:19,063 [narrator] the caller says the gunshot victims 58 00:03:19,133 --> 00:03:24,336 Are 28-year-old alex chute and 30-year-old brianna sproul. 59 00:03:25,105 --> 00:03:28,740 She worries there might be another victim as well. 60 00:03:29,642 --> 00:03:30,842 [steve] she was very upset. 61 00:03:30,911 --> 00:03:32,544 She said that they had a four-year-old daughter, 62 00:03:32,613 --> 00:03:34,913 But she wasn't sure if the daughter was there or not. 63 00:03:37,217 --> 00:03:40,385 I was very tense when we went to search the house 64 00:03:40,454 --> 00:03:42,221 Because I wasn't sure if we would find the daughter 65 00:03:42,289 --> 00:03:45,424 In the house. 66 00:03:46,293 --> 00:03:48,760 We didn't know if the shooter was gonna be in the house. 67 00:03:49,963 --> 00:03:52,631 We didn't know if there was more victims. 68 00:03:52,699 --> 00:03:55,600 More officers arrived from the green county sheriff's office. 69 00:03:55,668 --> 00:03:58,136 We evacuated the building. 70 00:03:58,204 --> 00:04:00,572 Then we did a search of the apartment. 71 00:04:02,142 --> 00:04:03,908 The police go in. They're armed, 72 00:04:03,977 --> 00:04:06,612 And they have their-- their firearms out. 73 00:04:08,448 --> 00:04:09,748 [steve] I noticed the house just looked like 74 00:04:09,816 --> 00:04:13,585 A normal person's house. Nothing was missing. 75 00:04:13,654 --> 00:04:16,688 We just did an entire sweep through the apartment, 76 00:04:16,757 --> 00:04:18,456 And that's when we located a four-year-old child 77 00:04:18,525 --> 00:04:21,360 Unharmed in the bathroom of the apartment. 78 00:04:21,428 --> 00:04:25,697 [music] 79 00:04:25,766 --> 00:04:28,399 [steve] she acted like she was happy to see us, 80 00:04:28,401 --> 00:04:30,535 Just like nothing happened. 81 00:04:31,571 --> 00:04:35,740 [shannon] the officers take her out the back of the house 82 00:04:35,742 --> 00:04:38,310 And shield her from the scene in the front. 83 00:04:39,046 --> 00:04:41,813 They whisked her away into a patrol car 84 00:04:41,882 --> 00:04:44,649 With a blanket, stuffed animal. 85 00:04:45,118 --> 00:04:49,888 She went into protective custody with the children's division. 86 00:04:54,294 --> 00:04:55,727 [narrator] with the child safe, 87 00:04:55,796 --> 00:04:58,497 Police turn their attention to the victims. 88 00:04:59,866 --> 00:05:03,935 To find anybody dead in that manner in willard 89 00:05:03,937 --> 00:05:06,605 Is something that is almost unheard of. 90 00:05:07,740 --> 00:05:10,776 The big question is, "who did it?" 91 00:05:14,781 --> 00:05:16,614 [music] 92 00:05:16,683 --> 00:05:19,418 [narrator] alex chute was born in st. Louis, missouri 93 00:05:19,486 --> 00:05:22,354 On November 11, 1992. 94 00:05:22,723 --> 00:05:24,656 He was the youngest of four children 95 00:05:24,725 --> 00:05:28,460 Raised by officer darrell chute and his wife, lisa. 96 00:05:29,763 --> 00:05:31,663 [darrell] I was on duty with the police department, 97 00:05:31,732 --> 00:05:34,799 So that was a flurry of activity to get to the hospital 98 00:05:34,868 --> 00:05:37,235 And bring alex into this world. 99 00:05:38,038 --> 00:05:40,572 He was just the biggest baby, and he was beautiful, 100 00:05:40,640 --> 00:05:42,607 Perfect in every way. 101 00:05:43,209 --> 00:05:46,278 [narrator] only a year later, their happy home was disrupted 102 00:05:46,346 --> 00:05:48,480 By divorce. 103 00:05:48,548 --> 00:05:50,982 Alex was about one when they split. 104 00:05:51,051 --> 00:05:54,553 My dad got remarried, and then my mom got remarried. 105 00:05:58,291 --> 00:06:01,893 [narrator] but alex's childhood remained a happy one. 106 00:06:02,629 --> 00:06:04,896 [nicholas] he was real big into anime and cartoons. 107 00:06:04,965 --> 00:06:06,998 He loved video games, like all kids. 108 00:06:07,066 --> 00:06:11,336 He actually won a super smash bro tournament 109 00:06:11,404 --> 00:06:12,904 When he was, like, 16. 110 00:06:14,140 --> 00:06:17,275 He really did fill the room with light and laughter. 111 00:06:17,344 --> 00:06:19,811 I guess you could call him the class clown. 112 00:06:23,216 --> 00:06:24,983 [narrator] alex was entering his sophomore year 113 00:06:25,051 --> 00:06:28,520 Of high school when his life was upended once again. 114 00:06:29,222 --> 00:06:32,524 We were living with my grandmother and my mother, 115 00:06:32,592 --> 00:06:34,492 And all of us kids. 116 00:06:34,561 --> 00:06:37,896 My grandmother had developed pancreatic cancer, 117 00:06:37,964 --> 00:06:41,500 And she was wanting to move back to new york. 118 00:06:42,335 --> 00:06:47,305 In 2008, we sold our house, 119 00:06:47,374 --> 00:06:49,874 And we moved to upstate new york. 120 00:06:50,410 --> 00:06:51,476 [narrator] alex found it difficult 121 00:06:51,545 --> 00:06:53,545 Adjusting to a new school, 122 00:06:53,613 --> 00:06:58,282 Until the bonded with a new friend, theresa cox. 123 00:06:58,752 --> 00:07:02,821 [lisa] theresa actually moved from wilmington, north carolina. 124 00:07:02,889 --> 00:07:06,090 They bonded because they both moved from different states, 125 00:07:06,092 --> 00:07:08,927 And, uh, came to the high school at the same time. 126 00:07:10,196 --> 00:07:14,098 Theresa had a, uh, troubled upbringing 127 00:07:14,100 --> 00:07:17,101 With her family, and her grandparents raised her. 128 00:07:17,971 --> 00:07:21,005 She was big into video games, and anime and stuff, like him. 129 00:07:22,108 --> 00:07:24,175 [lisa] they were pretty much together all the time, 130 00:07:24,244 --> 00:07:25,610 Every day. 131 00:07:25,612 --> 00:07:28,079 Alex was very smitten with her. 132 00:07:28,148 --> 00:07:30,414 [nicholas] she was fawning over alex, 133 00:07:30,484 --> 00:07:34,386 So it seemed like a young couple in love. 134 00:07:34,454 --> 00:07:37,355 [valerie] she made a very good first impression with us. 135 00:07:37,423 --> 00:07:39,123 If he liked her, we liked her. 136 00:07:39,125 --> 00:07:42,026 And I always trusted his judgment. 137 00:07:43,029 --> 00:07:46,530 [narrator] alex and theresa became inseparable. 138 00:07:46,532 --> 00:07:50,602 So when alex's family moved back to missouri after graduation, 139 00:07:50,670 --> 00:07:54,272 Theresa went with them as alex's wife. 140 00:07:58,044 --> 00:08:00,578 [lisa] they got married about six or seven weeks 141 00:08:00,580 --> 00:08:04,916 After high school, on August 3rd of 2011. 142 00:08:05,952 --> 00:08:07,886 [valerie] they got married in the courthouse. 143 00:08:07,954 --> 00:08:11,689 She had a beautiful dress. It was a really great day. 144 00:08:11,758 --> 00:08:14,158 We had a huge reception afterwards. 145 00:08:14,227 --> 00:08:16,194 [narrator] a few years into the marriage, 146 00:08:16,262 --> 00:08:20,432 Alex's desire to serve and protect led him to enlist. 147 00:08:20,500 --> 00:08:25,303 [music] 148 00:08:25,371 --> 00:08:29,140 [darrell] alex had made the decision to join the army 149 00:08:29,209 --> 00:08:33,044 And the national guard to become a, a mp, 150 00:08:33,113 --> 00:08:34,612 Military police. 151 00:08:34,681 --> 00:08:35,780 And so he attended basic training 152 00:08:35,848 --> 00:08:37,315 At fort leonard wood. 153 00:08:38,719 --> 00:08:40,952 [narrator] alex had just finished basic training 154 00:08:41,021 --> 00:08:45,123 When he achieved another goal by becoming a father. 155 00:08:49,229 --> 00:08:51,596 They decided they wanted to have a baby 156 00:08:51,664 --> 00:08:55,466 Right after he got out of bootcamp. 157 00:08:56,002 --> 00:08:59,337 They welcomed their daughter in may of 2016. 158 00:09:00,173 --> 00:09:01,773 The day that his daughter was born 159 00:09:01,841 --> 00:09:03,642 Was the best day of his life. 160 00:09:03,710 --> 00:09:08,146 And for me to be able to witness that was beautiful. 161 00:09:08,214 --> 00:09:10,115 He was so proud. 162 00:09:12,953 --> 00:09:16,620 [darrell] shortly thereafter, alex was to deploy to poland 163 00:09:16,622 --> 00:09:19,290 For a short mission or training. 164 00:09:19,359 --> 00:09:23,728 And theresa began to need help with our granddaughter. 165 00:09:23,730 --> 00:09:25,830 But it seemed that theresa withdrew, 166 00:09:25,832 --> 00:09:29,667 And the family ended up taking care of the baby. 167 00:09:30,136 --> 00:09:33,805 [katie] she worked as a gas station attendant for a moment. 168 00:09:33,873 --> 00:09:37,976 And then she didn't work at all. 169 00:09:38,044 --> 00:09:41,446 I don't think theresa understood what being a mother was. 170 00:09:41,914 --> 00:09:43,915 [narrator] unfortunately, after three years 171 00:09:43,984 --> 00:09:49,120 Of parenting together, the marriage fell apart in 2019. 172 00:09:50,356 --> 00:09:55,826 Alex and theresa became separated and divorced. 173 00:09:55,896 --> 00:09:59,964 Whatever the incident was, he never discussed it with us, 174 00:10:00,033 --> 00:10:03,535 But we assume it was some, uh, infidelity that happened 175 00:10:03,603 --> 00:10:05,937 Or something in that manner. 176 00:10:06,472 --> 00:10:08,607 When they got divorced, 177 00:10:08,675 --> 00:10:11,943 Alex, he let her keep the house. 178 00:10:12,178 --> 00:10:14,612 [narrator] alex remained devoted to his daughter, 179 00:10:14,680 --> 00:10:17,381 Maintaining joint custody with theresa. 180 00:10:18,585 --> 00:10:22,220 He took a new temporary job at a pizza place to make ends meet, 181 00:10:22,222 --> 00:10:25,423 And got another chance at love with a co-worker 182 00:10:25,491 --> 00:10:27,659 Named brianna sproul. 183 00:10:29,629 --> 00:10:31,996 He began dating brianna, 184 00:10:32,065 --> 00:10:34,666 Which we all called her bri. 185 00:10:34,734 --> 00:10:37,268 And they seemed to click together well. 186 00:10:38,238 --> 00:10:39,837 [katie] they were, ah, animal lovers. 187 00:10:39,906 --> 00:10:41,839 Advocate for rescues. 188 00:10:41,908 --> 00:10:44,976 I know her parents got divorced when she was young. 189 00:10:45,045 --> 00:10:48,412 Uh, that was another thing that alex and brianna had in common. 190 00:10:49,415 --> 00:10:53,017 [darrell] alex moved in with her several months later. 191 00:10:53,086 --> 00:10:56,921 His daughter, as the custody agreement allowed, 192 00:10:56,923 --> 00:10:58,456 They would spend time with her. 193 00:10:59,559 --> 00:11:02,460 [katie] a big part of alex loving brianna so much 194 00:11:02,528 --> 00:11:05,329 Was the way that she treated his daughter. 195 00:11:05,398 --> 00:11:07,832 [lisa] she took care of her like she was her own. 196 00:11:07,900 --> 00:11:11,002 And she loved her and made her birthday cakes, 197 00:11:11,070 --> 00:11:14,939 And costumes for Halloween. 198 00:11:15,341 --> 00:11:17,908 I think he was really excited about the future 199 00:11:17,978 --> 00:11:20,245 For the first time in a long time. 200 00:11:21,681 --> 00:11:23,281 [valerie] he proposed to her. 201 00:11:23,349 --> 00:11:25,383 And they started looking at homes. 202 00:11:25,451 --> 00:11:27,018 They were just building their future 203 00:11:27,087 --> 00:11:29,787 And kids were in the works. 204 00:11:29,856 --> 00:11:32,523 They were making their lives ready to start anew 205 00:11:32,525 --> 00:11:34,425 And be a fresh family. 206 00:11:34,494 --> 00:11:38,997 [music] 207 00:11:39,065 --> 00:11:41,633 [narrator] sadly, before alex and brianna 208 00:11:41,701 --> 00:11:43,301 Could realize their dreams, 209 00:11:43,369 --> 00:11:47,072 They were both found dead on their front porch. 210 00:11:48,909 --> 00:11:51,042 [steve] when we began to search the crime scene, 211 00:11:51,110 --> 00:11:53,712 Nine shell casings were found on the front porch 212 00:11:53,780 --> 00:11:55,613 And on the front steps. 213 00:11:56,149 --> 00:11:58,917 [shannon] one theory was that it was a murder-suicide 214 00:11:58,919 --> 00:12:02,086 Because there was one gun on scene 215 00:12:02,155 --> 00:12:07,024 And there were two deceased people on the porch. 216 00:12:07,093 --> 00:12:12,530 But because his weapon was a .40 caliber weapon, 217 00:12:12,598 --> 00:12:17,735 And the shell casings were a 9mm shell casing, 218 00:12:17,804 --> 00:12:21,239 It dispelled that theory pretty quickly. 219 00:12:24,944 --> 00:12:27,211 When we searched the gun, the magazine was full, 220 00:12:27,213 --> 00:12:29,914 And the gun was completely loaded. 221 00:12:29,982 --> 00:12:33,217 We didn't think he had fired any rounds. 222 00:12:33,219 --> 00:12:34,352 [shannon] by the position of the gun, 223 00:12:34,420 --> 00:12:38,289 He was more than likely holding the gun when he fell, 224 00:12:38,358 --> 00:12:41,392 And it just had fallen out of his hand, 225 00:12:41,461 --> 00:12:45,296 Which indicated to me that he did not try to protect himself 226 00:12:45,365 --> 00:12:46,597 When he fell. 227 00:12:46,599 --> 00:12:49,834 [steve] we're trying to make sense of what happened. 228 00:12:49,903 --> 00:12:53,104 All these things put red flags up to us. 229 00:12:53,173 --> 00:12:57,375 [music] 230 00:12:57,443 --> 00:12:58,909 [narrator] coming up... 231 00:12:58,979 --> 00:13:02,313 Investigators identify the time of death. 232 00:13:03,149 --> 00:13:05,116 Knowing the time of the crime 233 00:13:05,185 --> 00:13:09,154 Was important to find out what their alibi was. 234 00:13:10,189 --> 00:13:11,489 [narrator] and the victims' loved ones 235 00:13:11,557 --> 00:13:14,893 Point to a surprising suspect. 236 00:13:14,895 --> 00:13:17,862 She didn't have a maternal bone in her. 237 00:13:19,966 --> 00:13:23,434 [music] 238 00:13:27,339 --> 00:13:30,108 [music] 239 00:13:33,079 --> 00:13:35,013 [narrator] detectives in willard, missouri 240 00:13:35,081 --> 00:13:37,414 Are investigating the double murder 241 00:13:37,484 --> 00:13:40,718 Of alex chute and brianna sproul. 242 00:13:41,421 --> 00:13:44,088 As they analyze the evidence on hand, 243 00:13:44,157 --> 00:13:49,160 Detectives prioritize zeroing in on the time of the murders. 244 00:13:51,464 --> 00:13:52,596 [steve] one of the first things we start doing is 245 00:13:52,666 --> 00:13:55,899 Trying to establish a timeline, since they were obviously 246 00:13:55,901 --> 00:13:58,736 Already deceased and been there for quite some time. 247 00:13:59,805 --> 00:14:02,373 At that point, I didn't have access to any family records 248 00:14:02,442 --> 00:14:05,944 Or know any, um, people to call. 249 00:14:06,012 --> 00:14:09,647 [music] 250 00:14:09,715 --> 00:14:12,750 [narrator] however, alex is wearing a security guard uniform 251 00:14:12,819 --> 00:14:17,355 For a nearby airport, giving investigators a starting point. 252 00:14:17,623 --> 00:14:19,390 [steve] when I spoke to alex's supervisor, 253 00:14:19,459 --> 00:14:22,393 He said that he left an hour early. 254 00:14:22,395 --> 00:14:23,894 That alex was supposed to get off at midnight 255 00:14:23,896 --> 00:14:26,097 And left at 11:00 p.M. 256 00:14:27,467 --> 00:14:31,035 Alex, he had received some type of contact or message from 257 00:14:31,104 --> 00:14:32,803 His girlfriend, brianna, 258 00:14:32,805 --> 00:14:36,040 And he had notified another worker that he needed to go home 259 00:14:36,108 --> 00:14:37,875 And check on her. 260 00:14:38,944 --> 00:14:42,914 [steve] I asked the supervisor about the gun that alex had. 261 00:14:42,982 --> 00:14:48,185 He said alex is not commissioned to have a firearm while on duty, 262 00:14:48,254 --> 00:14:49,553 And that a holster and firearm 263 00:14:49,622 --> 00:14:52,190 Is not part of their approved uniform. 264 00:14:53,359 --> 00:14:56,794 This indicated to me that alex perceived a threat, 265 00:14:56,862 --> 00:14:58,329 Remained in uniform 266 00:14:58,398 --> 00:15:01,332 And eventually put on a holster and firearm. 267 00:15:01,401 --> 00:15:06,170 [music] 268 00:15:06,239 --> 00:15:09,273 [narrator] investigators surmise the shooting took place 269 00:15:09,275 --> 00:15:13,077 Between 11:15 p.M., when alex arrived home, 270 00:15:13,146 --> 00:15:17,582 And 9:03 a.M., when the 911 call came in. 271 00:15:19,185 --> 00:15:23,288 They hope neighbors can help narrow down that window. 272 00:15:24,591 --> 00:15:26,356 [steve] there was officers that were going door-to-door 273 00:15:26,358 --> 00:15:27,825 And doing a neighborhood canvass 274 00:15:27,893 --> 00:15:31,028 To find out what other people might have seen or heard. 275 00:15:31,431 --> 00:15:34,465 There was several people that heard things they described 276 00:15:34,534 --> 00:15:36,901 As fireworks in the middle of the night 277 00:15:36,969 --> 00:15:39,070 Around midnight, one o'clock. 278 00:15:39,939 --> 00:15:41,238 [shannon] this is willard. 279 00:15:41,307 --> 00:15:43,841 There's not gunshots in willard like that. 280 00:15:43,910 --> 00:15:48,446 A lot of people discounted what they heard and never called. 281 00:15:49,515 --> 00:15:52,316 [narrator] fortunately, one of the officers who lives nearby 282 00:15:52,385 --> 00:15:54,185 Comes up with an idea. 283 00:15:55,655 --> 00:15:59,324 He lived 700 feet from the crime scene. 284 00:16:00,660 --> 00:16:04,027 He asked me if I wanted him to check his doorbell camera. 285 00:16:04,029 --> 00:16:07,598 He said that it captures sound, and is activated by sound. 286 00:16:07,667 --> 00:16:09,267 And he checked it, 287 00:16:09,335 --> 00:16:11,703 And he was able to locate a video clip from 1:21 a.M. 288 00:16:14,106 --> 00:16:20,144 [multiple gunshots] 289 00:16:24,584 --> 00:16:28,086 We got the exact time that the murders happened. 290 00:16:30,756 --> 00:16:34,425 Knowing the time of the crime was important 291 00:16:34,494 --> 00:16:37,694 Because as we start talking to people, 292 00:16:37,764 --> 00:16:40,798 We want to find out what their alibi was 293 00:16:40,867 --> 00:16:42,700 During the time of the crime. 294 00:16:42,768 --> 00:16:47,538 [music] 295 00:16:47,607 --> 00:16:50,508 [narrator] hoping to find further clues, 296 00:16:50,576 --> 00:16:53,745 Officers conduct a thorough search of the apartment. 297 00:16:55,381 --> 00:16:58,015 [shannon] there was no sign of forced entry. 298 00:16:58,083 --> 00:17:01,318 The door was unlocked. 299 00:17:01,387 --> 00:17:06,024 Everything that was in the home appeared to be intact. 300 00:17:06,692 --> 00:17:12,062 The first thing that I noticed was, um, one of those fanny bags 301 00:17:12,064 --> 00:17:15,166 That had two glock magazines in it. 302 00:17:16,101 --> 00:17:19,103 And it appeared that it was just sitting out on the table 303 00:17:19,171 --> 00:17:20,571 Right by the door. 304 00:17:21,607 --> 00:17:23,041 [steve] another thing that I noticed, 305 00:17:23,109 --> 00:17:25,376 There was a loaded shotgun behind the door. 306 00:17:27,280 --> 00:17:28,479 [shannon] as a parent, 307 00:17:28,548 --> 00:17:32,316 I wouldn't leave a loaded shotgun behind a door 308 00:17:32,385 --> 00:17:35,252 Where it was accessible to a child. 309 00:17:35,321 --> 00:17:39,590 So that told me that at least alex and brianna thought 310 00:17:39,659 --> 00:17:42,727 That they needed some kind of protection. 311 00:17:44,197 --> 00:17:47,765 [narrator] whatever danger alex and brianna were expecting, 312 00:17:47,833 --> 00:17:51,202 It seems they may have trusted the person at their door enough 313 00:17:51,270 --> 00:17:53,937 To leave the shotgun behind. 314 00:17:53,939 --> 00:17:59,543 [music] 315 00:17:59,612 --> 00:18:02,212 [steve] there was blood splatter on the front door 316 00:18:02,282 --> 00:18:04,148 In front of brianna sproul's head, 317 00:18:04,216 --> 00:18:07,685 Which indicated to me that the door was most likely closed. 318 00:18:08,221 --> 00:18:12,055 So the scene looked like they had been lured outside. 319 00:18:12,926 --> 00:18:16,360 Like the victims had a personal connection with this person 320 00:18:16,429 --> 00:18:18,962 That allowed them to be so close to them. 321 00:18:18,964 --> 00:18:23,634 [shannon] at the scene, I also collected some papers 322 00:18:23,703 --> 00:18:27,905 From children's division and some legal paperwork 323 00:18:27,973 --> 00:18:31,442 That was in reference to custody issues. 324 00:18:33,213 --> 00:18:37,515 There was an ongoing conflict between the victim, alex chute, 325 00:18:37,583 --> 00:18:40,518 And his first wife, theresa cox. 326 00:18:42,955 --> 00:18:45,256 [steve] there was documents from alex's attorney 327 00:18:45,324 --> 00:18:48,191 Trying to establish full custody rights of the child. 328 00:18:49,028 --> 00:18:52,697 [shannon] my suspicion immediately went to theresa cox. 329 00:18:53,466 --> 00:18:57,001 That was why, when chief mcclain 330 00:18:57,069 --> 00:19:01,906 Went to advise her of alex's death, 331 00:19:02,842 --> 00:19:07,545 That he had a recording device on him if she said anything 332 00:19:07,613 --> 00:19:10,081 That could be incriminating. 333 00:19:10,149 --> 00:19:12,650 [music] 334 00:19:12,718 --> 00:19:14,785 [narrator] that afternoon, detectives arrive 335 00:19:14,854 --> 00:19:16,820 On the doorstep of theresa's home 336 00:19:16,889 --> 00:19:20,224 12 miles away in springfield, missouri. 337 00:19:21,827 --> 00:19:27,064 [tom] we knocked and she came to the door a few seconds later. 338 00:19:27,133 --> 00:19:29,367 Theresa was in her bed clothes. 339 00:19:29,369 --> 00:19:32,904 And it was 3:00, 3:30 in the afternoon. 340 00:20:07,407 --> 00:20:10,875 She seemed for the most part, somewhat unaffected. 341 00:20:12,344 --> 00:20:15,612 [narrator] when they ask theresa where she was the night before, 342 00:20:15,681 --> 00:20:18,349 She says she was on her way home from her job 343 00:20:18,417 --> 00:20:20,451 At a pizza restaurant. 344 00:21:03,963 --> 00:21:06,063 [narrator] due to the circumstances around her 345 00:21:06,131 --> 00:21:08,532 Ex-husband's murder, 346 00:21:08,601 --> 00:21:10,568 Their daughter remains in foster care 347 00:21:10,636 --> 00:21:13,104 Until a judge can review custody. 348 00:21:14,406 --> 00:21:16,907 As theresa's interview is wrapping up, 349 00:21:16,976 --> 00:21:20,111 Willard pd investigates her work schedule. 350 00:21:21,747 --> 00:21:24,681 [steve] I went and spoke with her supervisor, matthew plumb, 351 00:21:24,750 --> 00:21:28,419 The manager there, to verify that theresa cox was working 352 00:21:28,487 --> 00:21:30,554 At the time of the murders. 353 00:21:30,556 --> 00:21:34,057 They were able to provide me with timecard slips, 354 00:21:34,059 --> 00:21:37,628 Which it did show that theresa was clocked in. 355 00:21:38,297 --> 00:21:41,699 Speaking to matthew further, he said that, uh, 356 00:21:41,767 --> 00:21:45,068 Theresa did have bad blood towards alex. 357 00:21:45,671 --> 00:21:47,838 And theresa had mentioned it before 358 00:21:47,907 --> 00:21:49,907 That she would like for him to be dead. 359 00:21:50,643 --> 00:21:55,345 Right then, it really focused our attention 360 00:21:55,347 --> 00:21:57,381 On her involvement. 361 00:22:01,087 --> 00:22:03,854 [music] 362 00:22:08,293 --> 00:22:11,696 [music] 363 00:22:14,066 --> 00:22:16,567 [narrator] hours into their investigation, 364 00:22:16,569 --> 00:22:19,903 Willard police have a possible murder suspect, 365 00:22:19,905 --> 00:22:23,207 Alex chute's ex-wife, theresa cox. 366 00:22:24,844 --> 00:22:28,846 My theory at the time was that this was potentially 367 00:22:28,914 --> 00:22:31,148 Having something to do with custody 368 00:22:31,217 --> 00:22:33,451 Of their child in common. 369 00:22:37,189 --> 00:22:40,424 [narrator] alex's family might be able to answer questions 370 00:22:40,492 --> 00:22:42,893 About the former couple's relationship. 371 00:22:43,329 --> 00:22:46,497 But first, detectives must break the terrible news 372 00:22:46,565 --> 00:22:49,132 To them about the murders. 373 00:22:49,935 --> 00:22:53,136 You see it in the movies, where you fall to your knees 374 00:22:53,206 --> 00:22:55,639 And the whole world stops, 375 00:22:55,641 --> 00:22:58,642 And that's exactly what happened. 376 00:22:58,711 --> 00:23:01,645 And I just remember I was screaming to my sister, 377 00:23:01,714 --> 00:23:05,483 And I could hear her telling my mom that alex is gone. 378 00:23:07,086 --> 00:23:11,588 And her scream from a mother is something that 379 00:23:11,657 --> 00:23:14,257 You don't ever wanna hear ever again. 380 00:23:14,259 --> 00:23:19,196 [music] 381 00:23:19,265 --> 00:23:21,965 [narrator] digging deeper into the custody battle, 382 00:23:21,967 --> 00:23:24,835 Investigators ask about theresa. 383 00:23:25,838 --> 00:23:28,539 [nicholas] it started, really, when theresa gave birth, 384 00:23:28,607 --> 00:23:33,310 And she had issues just taking care of the child. 385 00:23:33,379 --> 00:23:37,014 I think that theresa didn't have a maternal bone in her. 386 00:23:37,082 --> 00:23:40,483 And she showed no compassion for my niece 387 00:23:40,485 --> 00:23:42,920 When she was first born. 388 00:23:42,988 --> 00:23:45,689 She just would leave her there to cry, 389 00:23:45,691 --> 00:23:47,925 And she would show no love for her. 390 00:23:52,564 --> 00:23:53,964 [nicholas] alex was working with bri. 391 00:23:54,033 --> 00:23:56,299 She was obviously a nice person. 392 00:23:56,301 --> 00:23:59,036 I think they just started developing a relationship, 393 00:23:59,104 --> 00:24:00,904 And that's kind of what sealed the deal. 394 00:24:00,973 --> 00:24:03,374 When alex and theresa got divorced, 395 00:24:03,442 --> 00:24:08,511 He let her keep the house. He let her keep their savings. 396 00:24:08,513 --> 00:24:10,314 He took on the debt. 397 00:24:13,752 --> 00:24:15,652 [narrator] they say alex was determined 398 00:24:15,721 --> 00:24:17,588 To keep things amicable, 399 00:24:17,656 --> 00:24:21,292 But theresa's behavior made that impossible. 400 00:24:22,461 --> 00:24:24,962 She was actually involved in a car accident one night, 401 00:24:25,030 --> 00:24:27,798 And the hospital called my brother. 402 00:24:27,866 --> 00:24:31,168 And the very first thing my brother said to 403 00:24:31,236 --> 00:24:34,437 The police officers is, "where's my daughter?" 404 00:24:34,507 --> 00:24:35,873 Well, come to find out, 405 00:24:35,941 --> 00:24:38,309 Alex told me theresa had been leaving their daughter 406 00:24:38,377 --> 00:24:42,146 At home alone overnights while she went to work. 407 00:24:44,383 --> 00:24:45,949 Anything could've happened. 408 00:24:46,018 --> 00:24:49,052 And you have just blatant disregard for a child's life 409 00:24:49,054 --> 00:24:52,455 That you chose to bring into this world. 410 00:24:52,457 --> 00:24:54,592 Absolutely crazy to me. 411 00:24:57,763 --> 00:25:00,731 [narrator] following the incident in 2017, 412 00:25:00,799 --> 00:25:03,634 And three years before his murder, 413 00:25:03,702 --> 00:25:06,670 Alex decided to pursue full custody. 414 00:25:07,806 --> 00:25:12,743 My brother called cps. Eventually they intervened, 415 00:25:12,811 --> 00:25:15,379 And he got full custody of his daughter. 416 00:25:16,949 --> 00:25:18,782 [katie] theresa was not allowed any contact 417 00:25:18,851 --> 00:25:23,320 With their daughter at all, unless approved by alex. 418 00:25:23,389 --> 00:25:29,293 [music] 419 00:25:29,361 --> 00:25:30,894 [narrator] to investigators, 420 00:25:30,896 --> 00:25:34,231 It seems theresa had plenty of motive. 421 00:25:34,233 --> 00:25:37,668 And they request a search warrant for her cell phone data. 422 00:25:39,104 --> 00:25:41,605 Pretty quickly, we obtained the search warrants 423 00:25:41,673 --> 00:25:43,274 And seized her cell phone. 424 00:25:43,342 --> 00:25:46,510 The first cell tower search warrant we received 425 00:25:46,578 --> 00:25:50,013 Was for theresa cox's phone number. 426 00:25:50,082 --> 00:25:52,950 Data showed that she was in springfield the entire time 427 00:25:53,018 --> 00:25:54,685 And not in willard. 428 00:25:54,753 --> 00:25:59,589 [music] 429 00:25:59,591 --> 00:26:02,392 [narrator] while the data corroborates theresa's alibi 430 00:26:02,394 --> 00:26:05,896 By placing her 12 miles away from willard, 431 00:26:05,964 --> 00:26:09,266 Investigators are still left with questions. 432 00:26:09,635 --> 00:26:11,702 Next, they request a search warrant 433 00:26:11,770 --> 00:26:14,271 For theresa's text messages. 434 00:26:14,339 --> 00:26:16,306 [steve] we were able to get text message content 435 00:26:16,375 --> 00:26:19,476 For about three or four days prior to the murder. 436 00:26:19,545 --> 00:26:24,181 It showed a text message between theresa and an unknown person. 437 00:26:25,350 --> 00:26:27,250 It looked to be someone that was intimate, 438 00:26:27,319 --> 00:26:29,820 Or someone that was in a relationship, 439 00:26:29,888 --> 00:26:32,089 Since they were saying things like, "I love you" 440 00:26:32,157 --> 00:26:34,258 Or calling you "babe" and stuff like that. 441 00:26:36,194 --> 00:26:39,062 [phillip] one of the messages sent by theresa cox 442 00:26:39,064 --> 00:26:42,900 Said something to the effect of, "change of plans for Friday." 443 00:26:42,968 --> 00:26:46,203 The message sent in response was, 444 00:26:46,271 --> 00:26:49,106 "I need some time to myself. 445 00:26:49,174 --> 00:26:52,309 I need to be able to air out my mind before tomorrow night." 446 00:26:53,378 --> 00:26:55,312 The vagueness and some of the information 447 00:26:55,380 --> 00:26:57,247 In those text messages could imply that 448 00:26:57,316 --> 00:26:59,717 That other number could be involved. 449 00:27:02,621 --> 00:27:05,822 [narrator] police track the messages to someone named 450 00:27:05,891 --> 00:27:08,058 Duncan bogle. 451 00:27:08,127 --> 00:27:10,660 Duncan bogle ended up being someone 452 00:27:10,662 --> 00:27:12,963 Who was in a relationship with theresa cox at the time 453 00:27:13,031 --> 00:27:14,864 That the murders took place. 454 00:27:14,866 --> 00:27:18,701 Law enforcement spoke with some of the friends of duncan bogle 455 00:27:18,703 --> 00:27:21,405 To get more information. 456 00:27:21,473 --> 00:27:25,675 [music] 457 00:27:25,745 --> 00:27:28,779 I first met duncan when were 12 and 13. 458 00:27:28,847 --> 00:27:31,215 He moved to our small town. 459 00:27:31,283 --> 00:27:36,253 And duncan first met theresa back in like February of 2020. 460 00:27:36,321 --> 00:27:38,021 They were working together at walmart. 461 00:27:38,090 --> 00:27:40,057 I think it was like two or three months later that 462 00:27:40,125 --> 00:27:43,360 He was moving in with her. They didn't first start dating. 463 00:27:43,428 --> 00:27:46,463 What it was, was theresa needed help with bills. 464 00:27:46,531 --> 00:27:47,798 And so duncan was like, 465 00:27:47,866 --> 00:27:49,766 "well, I want to get out of my mom's house." 466 00:27:49,768 --> 00:27:50,934 So they came up with the agreement 467 00:27:51,003 --> 00:27:53,270 That they could be roommates. 468 00:27:53,338 --> 00:27:58,008 [narrator] duncan was only 20, making theresa 8 years older, 469 00:27:58,076 --> 00:28:01,045 But that didn't stop romance from blossoming. 470 00:28:03,348 --> 00:28:06,549 [henryedda] duncan is a very quiet type, kind of person. 471 00:28:06,551 --> 00:28:11,388 So it does kind of take him a minute to like, uh, 472 00:28:11,456 --> 00:28:12,889 Really open up to people. 473 00:28:12,958 --> 00:28:14,425 He was very excited. 474 00:28:14,493 --> 00:28:15,626 He was just like a teenager 475 00:28:15,694 --> 00:28:17,027 Who is, like, in the middle of class 476 00:28:17,095 --> 00:28:19,096 With, like, a note from their crush. 477 00:28:19,164 --> 00:28:21,198 That's what he was. 478 00:28:22,934 --> 00:28:25,068 [narrator] investigators must ask, 479 00:28:25,070 --> 00:28:29,839 Did duncan love theresa enough to commit murder for her? 480 00:28:30,375 --> 00:28:33,343 When we did a search warrant for duncan bogle's cell tower data, 481 00:28:33,412 --> 00:28:35,979 It showed that duncan was actually in the area 482 00:28:36,048 --> 00:28:39,649 Of the crime scene during the time the shots were heard. 483 00:28:40,052 --> 00:28:41,652 [phillip] duncan bogle and theresa cox, 484 00:28:41,720 --> 00:28:43,386 They lived in springfield. 485 00:28:43,455 --> 00:28:46,723 And willard is several miles north of the springfield area. 486 00:28:46,792 --> 00:28:50,260 And so having duncan's phone pinging off a tower in willard 487 00:28:50,329 --> 00:28:53,463 Around the time of the murders is crucial evidence. 488 00:28:54,066 --> 00:28:58,368 Next, we served a search warrant for theresa cox's residence. 489 00:28:58,436 --> 00:29:01,938 [music] 490 00:29:02,007 --> 00:29:03,473 [narrator] coming up... 491 00:29:03,542 --> 00:29:05,876 A murder plot unfolds. 492 00:29:06,611 --> 00:29:10,580 All I can think of is she sold her soul to the devil. 493 00:29:10,582 --> 00:29:14,518 [narrator] and co-conspirators begin to turn on one another. 494 00:29:18,257 --> 00:29:21,425 [music] 495 00:29:25,330 --> 00:29:27,631 [music] 496 00:29:31,236 --> 00:29:34,371 [narrator] cell phone data suggests theresa cox 497 00:29:34,439 --> 00:29:39,409 And duncan bogle were planning to murder her ex-husband. 498 00:29:39,945 --> 00:29:42,112 Five days into the investigation, 499 00:29:42,180 --> 00:29:45,882 Police obtain a warrant to search the couple's home. 500 00:29:45,951 --> 00:29:52,022 [music] 501 00:29:52,491 --> 00:29:56,059 [phillip] they were able to locate an empty gun box 502 00:29:56,128 --> 00:29:58,328 That was for the 9mm gun. 503 00:29:58,397 --> 00:30:02,633 And it had the serial number on the outside of the box. 504 00:30:03,768 --> 00:30:08,271 [steve] there was also a receipt found in the master bedroom. 505 00:30:08,340 --> 00:30:10,774 And that receipt said it was purchased on October 11th 506 00:30:10,843 --> 00:30:12,275 By theresa cox, 507 00:30:12,277 --> 00:30:14,444 About a month before the murder. 508 00:30:16,015 --> 00:30:18,681 They located it inside a nearby safe. 509 00:30:18,683 --> 00:30:23,953 There was ammunition that was 9mm caliber ammunition. 510 00:30:24,023 --> 00:30:27,124 And on the headstamp, it was s&b 9mm. 511 00:30:27,192 --> 00:30:30,027 It was the exact same type of ammunition that was located 512 00:30:30,029 --> 00:30:32,429 At the crime scene with the shell casings. 513 00:30:32,431 --> 00:30:36,032 [music] 514 00:30:36,101 --> 00:30:40,436 [narrator] however, the gun itself is missing. 515 00:30:40,506 --> 00:30:43,674 Police records show theresa reported it stolen 516 00:30:43,742 --> 00:30:48,111 About 10 days before alex and brianna were shot. 517 00:30:48,113 --> 00:30:50,947 [music] 518 00:30:51,016 --> 00:30:51,981 [steve] the gun was reported stolen 519 00:30:52,051 --> 00:30:55,052 The same day theresa was served with paperwork 520 00:30:55,120 --> 00:30:59,623 From, uh, alex's attorneys requesting child support 521 00:30:59,691 --> 00:31:02,592 In the amount of $400. 522 00:31:02,661 --> 00:31:05,128 I believe it was the straw that broke the camel's back. 523 00:31:06,398 --> 00:31:08,565 [narrator] police also find an interesting exchange 524 00:31:08,633 --> 00:31:12,269 On theresa's phone regarding a man named matthew. 525 00:31:14,139 --> 00:31:18,074 [shannon] there was kind of an odd message 526 00:31:18,143 --> 00:31:22,945 Where somebody was saying to theresa that she thought 527 00:31:22,947 --> 00:31:26,949 That matthew was leaving her because he wasn't being 528 00:31:26,951 --> 00:31:29,086 Responsive to her messages. 529 00:31:29,621 --> 00:31:33,923 That person was later determined to be ariel. 530 00:31:33,993 --> 00:31:36,727 And she was the girlfriend of matthew. 531 00:31:37,729 --> 00:31:40,763 Theresa had in some way told ariel, 532 00:31:40,833 --> 00:31:44,501 "no, that's not the case. We had a very busy night." 533 00:31:48,974 --> 00:31:50,240 [narrator] police track the number 534 00:31:50,308 --> 00:31:53,109 And speak to a woman named ariel. 535 00:31:53,879 --> 00:31:58,014 The matthew she mentioned turns out to be matthew plumb, 536 00:31:58,083 --> 00:32:01,451 The night manager who gave theresa her alibi. 537 00:32:32,718 --> 00:32:36,619 [steve] matthew plumb's actions were suspicious that night 538 00:32:36,688 --> 00:32:40,090 That he stayed late for work. He was distant towards her, 539 00:32:40,158 --> 00:32:41,858 Which led us to believe that he had--may have had 540 00:32:41,927 --> 00:32:45,095 A more important role in this. 541 00:32:46,832 --> 00:32:48,898 [narrator] police bring matthew into the station 542 00:32:48,967 --> 00:32:53,236 For a second interview, but he sticks by his story. 543 00:33:04,983 --> 00:33:09,185 I didn't believe him. I just kept asking questions 544 00:33:09,187 --> 00:33:12,356 And then I noticed there were some loose ends, or some lies. 545 00:33:36,715 --> 00:33:41,284 He did eventually tell us that he conspired with, uh, theresa. 546 00:33:47,559 --> 00:33:51,327 [narrator] matthew says it was to protect theresa's daughter. 547 00:33:51,396 --> 00:33:55,097 According to him, alex was the one abusing the child, 548 00:33:55,099 --> 00:33:58,368 Not theresa. 549 00:33:58,436 --> 00:34:01,371 [shannon] theresa was constantly complaining 550 00:34:01,439 --> 00:34:05,642 That alex was abusing their daughter 551 00:34:05,710 --> 00:34:09,612 And she wanted to do anything she could to protect her. 552 00:34:10,715 --> 00:34:16,619 Theresa's plan was essentially to have alex, her ex, killed 553 00:34:16,621 --> 00:34:19,389 By duncan at a time where she was at work, 554 00:34:19,457 --> 00:34:21,658 So she had an alibi. 555 00:34:22,594 --> 00:34:27,798 Matthew said that he had given theresa some pointers 556 00:34:27,866 --> 00:34:31,201 On how to get rid of a gun. 557 00:34:59,330 --> 00:35:00,630 [narrator] on November 13th, 558 00:35:00,699 --> 00:35:03,800 Theresa put the plan into action. 559 00:35:06,571 --> 00:35:09,839 [phillip] when theresa had gotten to work that night, 560 00:35:09,908 --> 00:35:12,308 She made some comment to the effect of, 561 00:35:12,377 --> 00:35:14,544 "it's gonna happen tonight." 562 00:35:14,947 --> 00:35:17,647 And later on, really into the next morning, 563 00:35:17,716 --> 00:35:22,118 Around 1:00 or 1:30, matt is still working there. 564 00:35:22,187 --> 00:35:24,320 Theresa's still there. 565 00:35:24,389 --> 00:35:26,756 And that's when duncan bogle arrives back. 566 00:35:28,593 --> 00:35:33,195 And duncan tells matt plumb that he shot two people 567 00:35:33,197 --> 00:35:34,797 On the front porch. 568 00:35:34,866 --> 00:35:37,834 [multiple gunshots] 569 00:35:40,472 --> 00:35:44,907 Duncan was very upset about what had happened. 570 00:35:44,977 --> 00:35:50,747 And they spent several hours trying to calm him down. 571 00:35:52,851 --> 00:35:55,652 After that takes place, matt takes the gun. 572 00:36:05,229 --> 00:36:08,264 [narrator] the murder weapon is recovered just 10 miles away 573 00:36:08,333 --> 00:36:10,267 In a nearby creek. 574 00:36:11,436 --> 00:36:13,336 When the handgun was located, 575 00:36:13,338 --> 00:36:15,438 It had the exact same serial number on it 576 00:36:15,440 --> 00:36:17,407 From the gun box that they had found 577 00:36:17,475 --> 00:36:20,476 At theresa cox's residence. 578 00:36:21,079 --> 00:36:23,313 During the autopsy, there was three projectiles 579 00:36:23,381 --> 00:36:26,849 Found in alex's body, two in his chest cavity 580 00:36:26,918 --> 00:36:28,351 And one in his head. 581 00:36:28,420 --> 00:36:30,220 Uh, these were consistent with the other bullets 582 00:36:30,288 --> 00:36:33,456 That were found on scene, 9mm projectiles, 583 00:36:33,525 --> 00:36:35,425 Full metal jacket. 584 00:36:35,760 --> 00:36:39,896 No projectiles were found in, uh, brianna's body. 585 00:36:40,465 --> 00:36:41,664 [phillip] the highway patrol crime lab 586 00:36:41,666 --> 00:36:44,867 Here in missouri were able to determine that that gun 587 00:36:44,936 --> 00:36:48,171 That was found in the creek in fact fired the shell casings 588 00:36:48,239 --> 00:36:49,973 That were located at the crime scene. 589 00:36:51,776 --> 00:36:55,412 It was that pivotal piece where we could say that 590 00:36:55,480 --> 00:36:58,481 The casings came from the gun, 591 00:36:58,550 --> 00:37:02,719 And that the gun came from theresa. 592 00:37:04,122 --> 00:37:07,457 [narrator] on December 1st, matthew plumb is arrested. 593 00:37:08,126 --> 00:37:11,828 Matt plumb was originally charged with first-degree murder 594 00:37:11,896 --> 00:37:16,232 As an accessory for aiding and encouraging theresa cox 595 00:37:16,301 --> 00:37:18,134 In her plot. 596 00:37:18,203 --> 00:37:19,969 [narrator] but when investigators try to arrest 597 00:37:19,971 --> 00:37:24,341 Theresa and duncan, they cannot be located. 598 00:37:25,810 --> 00:37:31,514 It looked like duncan and theresa had gone into hiding. 599 00:37:32,650 --> 00:37:35,084 [valerie] it was like living a nightmare 600 00:37:35,086 --> 00:37:38,355 'cause we didn't know what her plan was. 601 00:37:41,125 --> 00:37:44,027 [music] 602 00:37:48,232 --> 00:37:51,101 [music] 603 00:37:54,373 --> 00:37:56,739 [narrator] theresa cox and duncan bogle 604 00:37:56,741 --> 00:37:59,976 Appear to be on the run after evidence linked them 605 00:38:00,044 --> 00:38:03,713 In a murder plot to kill theresa's ex-husband. 606 00:38:04,816 --> 00:38:08,351 Nobody knew what they might do next. 607 00:38:08,353 --> 00:38:10,453 So we were on high alert. 608 00:38:11,089 --> 00:38:13,056 [narrator] the couple manages to evade police 609 00:38:13,124 --> 00:38:15,391 For a week and a half, 610 00:38:15,460 --> 00:38:18,695 Until a co-worker comes forward with a tip. 611 00:38:20,498 --> 00:38:24,034 She said that she took bogle and cox to walmart 612 00:38:24,102 --> 00:38:25,568 Where they got hair dye. 613 00:38:25,570 --> 00:38:27,704 And they got a new phone for bogle. 614 00:38:27,772 --> 00:38:29,772 She said they then cut and dyed their hair 615 00:38:29,841 --> 00:38:32,775 And were acting suspiciously. 616 00:38:32,844 --> 00:38:34,577 [shannon] she took them to a truck stop, 617 00:38:34,646 --> 00:38:36,679 Where they were going to make their way 618 00:38:36,748 --> 00:38:38,948 To places unknown. 619 00:38:39,017 --> 00:38:43,686 What she did give us was the newest phone number 620 00:38:43,688 --> 00:38:46,422 Because after we took theresa's phone, 621 00:38:46,491 --> 00:38:48,858 She bought a new phone. 622 00:38:49,160 --> 00:38:51,494 [steve] I gave the u.S. Marshals that phone number, 623 00:38:51,563 --> 00:38:53,663 Which they were able to subsequently ping 624 00:38:53,731 --> 00:38:57,067 That phone number and locate theresa cox and duncan bogle 625 00:38:57,135 --> 00:38:59,268 In san francisco, california. 626 00:38:59,871 --> 00:39:01,538 I believe they were trying to blend in with homeless people 627 00:39:01,606 --> 00:39:03,306 And disappear. 628 00:39:04,075 --> 00:39:05,608 [phillip] they were arrested on December 8th, 629 00:39:05,677 --> 00:39:08,811 Almost a month after when the murders had taken place. 630 00:39:08,880 --> 00:39:11,481 Duncan bogle was charged with two counts of 631 00:39:11,549 --> 00:39:12,915 First-degree murder. 632 00:39:12,984 --> 00:39:15,651 And theresa cox was charged with first-degree murder 633 00:39:15,720 --> 00:39:17,120 And second-degree murder. 634 00:39:21,592 --> 00:39:23,292 [narrator] in preparation for trial, 635 00:39:23,361 --> 00:39:26,462 The prosecution makes a deal with matthew plumb 636 00:39:26,531 --> 00:39:29,866 In exchange for his testimony against theresa. 637 00:39:31,169 --> 00:39:32,969 [phillip] matt plumb would end up receiving 638 00:39:33,037 --> 00:39:36,506 A five-year sentence for conspiracy to commit murder, 639 00:39:36,574 --> 00:39:38,474 And he received a three-year sentence 640 00:39:38,543 --> 00:39:40,510 For tampering with evidence. 641 00:39:40,578 --> 00:39:43,245 And his sentences were ran consecutively, 642 00:39:43,247 --> 00:39:46,249 Meaning one after the other, for a total of eight years. 643 00:39:48,953 --> 00:39:51,420 [narrator] with his help, prosecutors piece together 644 00:39:51,422 --> 00:39:55,492 A narrative to convince the jury of theresa's guilt. 645 00:39:57,261 --> 00:40:01,397 [shannon] I think that she didn't want her daughter. 646 00:40:01,466 --> 00:40:05,301 I think that she didn't want alex to have her daughter. 647 00:40:06,338 --> 00:40:11,707 I think that she just wanted to wipe that side of her life away 648 00:40:11,776 --> 00:40:14,811 And move on to the next chapter for herself. 649 00:40:17,615 --> 00:40:21,551 I believe theresa decided to murder him 650 00:40:21,619 --> 00:40:24,854 The day his daughter got forcibly removed. 651 00:40:25,523 --> 00:40:28,290 The checks were gonna stop coming for child support. 652 00:40:28,292 --> 00:40:31,461 And that's the day that she called in the gun missing. 653 00:40:31,529 --> 00:40:36,132 [music] 654 00:40:36,200 --> 00:40:39,536 [narrator] to convince her co-conspirators to kill alex, 655 00:40:39,604 --> 00:40:42,539 Theresa turned him into a villain. 656 00:40:43,775 --> 00:40:48,077 Her narrative was alex is a bad person. Alex is abusive. 657 00:40:48,146 --> 00:40:51,714 Nothing that was ever founded, but those negative things 658 00:40:51,783 --> 00:40:54,784 Probably make matt or make duncan bogle 659 00:40:54,852 --> 00:40:57,920 Feel like they're actually helping her out, 660 00:40:57,989 --> 00:40:59,389 And that they're just not harming someone 661 00:40:59,457 --> 00:41:01,190 That is truly innocent. 662 00:41:02,326 --> 00:41:03,993 [henryedda] duncan was definitely the perfect mark 663 00:41:04,062 --> 00:41:05,327 For her. 664 00:41:05,329 --> 00:41:09,732 Generally, he always wants to do what makes other people happy. 665 00:41:09,801 --> 00:41:13,069 And so it made him an easy target. 666 00:41:13,137 --> 00:41:17,740 [music] 667 00:41:17,809 --> 00:41:19,676 [narrator] theresa and duncan's murder trial 668 00:41:19,744 --> 00:41:23,379 Is set for October 2022, 669 00:41:23,448 --> 00:41:28,017 Nearly two years after alex and brianna were murdered. 670 00:41:28,086 --> 00:41:30,687 But it never gets underway. 671 00:41:31,355 --> 00:41:35,291 Theresa cox would plead guilty to two counts 672 00:41:35,359 --> 00:41:37,526 Of second-degree murder. 673 00:41:37,528 --> 00:41:40,763 Duncan bogle also would enter guilty pleas to two counts 674 00:41:40,832 --> 00:41:42,965 Of second-degree murder, as well as a count of 675 00:41:43,034 --> 00:41:45,268 Endangering the welfare of a child. 676 00:41:49,774 --> 00:41:53,676 [narrator] on November 1, 2022, theresa is sentenced 677 00:41:53,744 --> 00:41:58,614 To two consecutive life terms in prison. 678 00:41:58,683 --> 00:42:01,117 Duncan receives the same sentence, 679 00:42:01,185 --> 00:42:05,154 Plus an additional year for child endangerment. 680 00:42:05,223 --> 00:42:07,957 [phillip] theresa cox sent her significant other 681 00:42:08,026 --> 00:42:12,494 Over to the residence knowing that her child is 682 00:42:12,496 --> 00:42:14,964 Inside that home. 683 00:42:15,033 --> 00:42:18,434 That's one of those things that always sticks with me. 684 00:42:18,502 --> 00:42:24,274 [music] 685 00:42:24,342 --> 00:42:26,642 [narrator] in the aftermath of the trial, 686 00:42:26,711 --> 00:42:29,545 Alex's loved ones have dedicated themselves 687 00:42:29,614 --> 00:42:33,115 To raising his little girl. 688 00:42:33,117 --> 00:42:35,751 [valerie] alex was a very great dad. 689 00:42:35,820 --> 00:42:38,821 He did what he had to do to protect his daughter, 690 00:42:38,890 --> 00:42:42,659 And him and brianna died protecting her. 691 00:42:44,195 --> 00:42:45,995 [lisa] alex would want to be remembered 692 00:42:46,064 --> 00:42:48,531 By the way that he loved people. 693 00:42:48,599 --> 00:42:52,969 And he was a loving, loving, loving 694 00:42:53,037 --> 00:42:56,539 Son and brother, and father. 695 00:42:57,408 --> 00:43:00,242 [darrell] our granddaughter only spent one night 696 00:43:00,311 --> 00:43:01,911 In emergency foster care. 697 00:43:01,979 --> 00:43:06,248 And we went down and picked her up the next morning 698 00:43:06,250 --> 00:43:10,119 To take care of her. And we've had her ever since. 699 00:43:10,188 --> 00:43:14,190 And now that we have adopted her a little while ago, 700 00:43:14,258 --> 00:43:18,227 It's a legalization of what was already in our hearts. 701 00:43:18,296 --> 00:43:21,263 She's asked us about calling us mom and dad, 702 00:43:21,332 --> 00:43:24,700 But it seems uncomfortable for us. 703 00:43:24,769 --> 00:43:27,904 We can continue to be pawpaw and mimi. 704 00:43:27,972 --> 00:43:30,472 We point out to her that mom and dad are still there. 705 00:43:30,542 --> 00:43:33,209 They're just in heaven. 706 00:43:34,678 --> 00:43:40,450 [music]