1 00:00:01,767 --> 00:00:03,433 [dramatic music playing] 2 00:01:02,000 --> 00:01:03,100 [man 1 speaking] 3 00:01:03,100 --> 00:01:04,500 [man 2 speaking] 4 00:01:04,500 --> 00:01:06,400 [man 3 speaking] 5 00:01:06,400 --> 00:01:08,734 [man 4] Being inside of me is like... 6 00:01:10,066 --> 00:01:12,233 The appetite, it's like a wolf that's... 7 00:01:14,100 --> 00:01:15,367 feeling... 8 00:01:16,100 --> 00:01:17,533 the hunger. 9 00:02:01,200 --> 00:02:04,100 Dylon Peterson is letting the operator know 10 00:02:04,100 --> 00:02:05,700 he's killed two people 11 00:02:05,700 --> 00:02:07,300 and he's looking for a response. 12 00:02:07,300 --> 00:02:10,266 Which is often what a person with psychopathy wants. 13 00:02:10,266 --> 00:02:13,767 They've done the act. They want a reaction from somebody else. 14 00:02:13,767 --> 00:02:18,600 And the operator isn't responding to all of his cues 15 00:02:18,600 --> 00:02:22,100 that are designed to elicit maybe some hock, some horror 16 00:02:22,100 --> 00:02:24,367 or something other than what she's doing 17 00:02:24,367 --> 00:02:26,467 and that's why he's irritated. 18 00:02:43,000 --> 00:02:45,667 [narrator] Tonight, this Vancouver family gathers for dinner 19 00:02:45,667 --> 00:02:47,967 but with one less brother at the table. 20 00:02:47,967 --> 00:02:50,567 15 year old Mathew Nagle was the youngest 21 00:02:50,567 --> 00:02:52,967 and the victim of a brutal stabbing. 22 00:02:52,967 --> 00:02:57,367 Police found Nagle and his mom, Sandra Torell, dead inside their home. 23 00:02:57,367 --> 00:03:01,400 Police say 25-year-old Dylon Peterson called 911 24 00:03:01,400 --> 00:03:03,367 and confessed to killing them. 25 00:03:03,367 --> 00:03:04,567 I heard about Dylon. 26 00:03:04,567 --> 00:03:06,567 He was just a guy hard on his luck that needed some help. 27 00:03:06,567 --> 00:03:08,166 And he seemed like a good guy, you know. 28 00:03:08,166 --> 00:03:11,500 [narrator] Peterson went to the culinary institute with their brother Nick. 29 00:03:11,500 --> 00:03:13,367 And after losing his apartment, 30 00:03:13,367 --> 00:03:15,900 Nick invited him to move in with his family. 31 00:03:15,900 --> 00:03:18,667 For two month, he was the perfect houseguest 32 00:03:18,667 --> 00:03:22,233 but on Sunday, they say he became a psychopath. 33 00:04:19,867 --> 00:04:21,567 [Dr. Charles] Dylon said that Nick is his friend, 34 00:04:21,567 --> 00:04:23,166 they were in school together. 35 00:04:23,166 --> 00:04:25,667 But at the core, people with psychopathy 36 00:04:25,667 --> 00:04:27,433 don't connect to other people. 37 00:04:28,667 --> 00:04:31,967 People don't mean something to them as another human being. 38 00:04:31,967 --> 00:04:33,734 They are like objects. 39 00:04:34,767 --> 00:04:36,600 So the person he turned to and asked for help 40 00:04:36,600 --> 00:04:38,166 was out of the house that night. 41 00:04:38,166 --> 00:04:40,233 And then he killed that person's family. 42 00:04:42,300 --> 00:04:44,000 [Dr. Nicole] They thought that they were helping him. 43 00:04:44,000 --> 00:04:48,567 And, in fact, he was just living off of them 44 00:04:48,567 --> 00:04:50,266 until he couldn't anymore. 45 00:04:50,266 --> 00:04:53,667 He couldn't control himself. He couldn't control those impulses. 46 00:04:53,667 --> 00:04:57,033 And something triggered him, to, you know, act on that. 47 00:06:16,767 --> 00:06:19,266 Peterson's painting a picture of himself 48 00:06:19,266 --> 00:06:23,000 as having grown up in a tumultuous childhood. 49 00:06:23,000 --> 00:06:26,667 We know that children who experience adverse childhood events 50 00:06:26,667 --> 00:06:31,767 tend to have a higher likelihood of mental health disorders. 51 00:06:31,767 --> 00:06:34,467 Including anti-social tendencies. 52 00:06:34,467 --> 00:06:36,166 [Dr. Charles] He's pointing something out, 53 00:06:36,166 --> 00:06:41,100 where he doesn't feel his mother recognized what he was experiencing. 54 00:06:41,100 --> 00:06:44,467 He has an ax to grind. He's got feelings about what she didn't do. 55 00:06:44,467 --> 00:06:46,867 And they're still very much alive in is head. 56 00:07:54,266 --> 00:07:56,667 He discloses that when he was 21, 57 00:07:56,667 --> 00:08:00,066 he began to drink alcohol and spiraled into 58 00:08:00,066 --> 00:08:02,467 severe substance abuse. 59 00:08:02,467 --> 00:08:05,000 We know that individuals with psychopathy 60 00:08:05,000 --> 00:08:07,000 tend to seek stimulation 61 00:08:07,000 --> 00:08:10,000 and that can be from driving in a vehicle, really fast, 62 00:08:10,000 --> 00:08:12,266 to using drugs and alcohol. 63 00:08:12,266 --> 00:08:15,900 And, in fact, we know that just a few days before this arrest, 64 00:08:15,900 --> 00:08:20,367 he was arrested for trying to purchase cocaine. 65 00:08:20,367 --> 00:08:22,567 [Dr. Nicole] This is a perfect example 66 00:08:22,567 --> 00:08:25,000 of someone that lives a parasitic lifestyle. 67 00:08:25,000 --> 00:08:28,166 They're living off of others without care or concern. 68 00:08:28,166 --> 00:08:31,467 They're not paying debts, they're not taking responsibility for anything. 69 00:08:31,467 --> 00:08:34,667 And yeah, he's still the victim in this story. 70 00:09:38,400 --> 00:09:40,867 [Dr. Nicole] He's not taking the responsibility 71 00:09:40,867 --> 00:09:42,467 of killing somebody. 72 00:09:42,467 --> 00:09:44,800 He's blaming it on his past 73 00:09:44,800 --> 00:09:46,433 and something inside of him. 74 00:09:48,200 --> 00:09:51,367 Peterson is saying his family has failed him, 75 00:09:51,367 --> 00:09:52,900 the community has failed him, 76 00:09:52,900 --> 00:09:55,266 society has failed him, 77 00:09:55,266 --> 00:09:56,900 and this is what happens now. 78 00:09:56,900 --> 00:09:59,266 The monster comes out. And the monster is doing this. 79 00:09:59,266 --> 00:10:01,667 Displacing the blame. 80 00:10:01,667 --> 00:10:04,900 It's very possible that he's describing this 81 00:10:04,900 --> 00:10:07,000 demon part of him, 82 00:10:07,000 --> 00:10:09,200 so he can leave open the fact 83 00:10:09,200 --> 00:10:13,066 that he might want to plead "Not guilty" by reason of insanity. 84 00:10:13,066 --> 00:10:15,100 Which would mean he would have to have some element 85 00:10:15,100 --> 00:10:17,100 of psychosis or psychotic behavior, 86 00:10:17,100 --> 00:10:18,266 some disconnect from reality. 87 00:11:22,767 --> 00:11:26,166 He seems to feel entitled to 88 00:11:26,166 --> 00:11:29,066 be condescending toward the mother, 89 00:11:29,667 --> 00:11:31,667 be upset about bad grades, 90 00:11:31,667 --> 00:11:34,734 be upset about the way kids are raised today. 91 00:11:35,467 --> 00:11:40,667 He has so much self-inflated worth, 92 00:11:40,667 --> 00:11:43,100 and value in himself, and grandiosity 93 00:11:43,100 --> 00:11:45,967 that he believes he's in a position 94 00:11:45,967 --> 00:11:48,834 to be judging any of these other areas of life. 95 00:12:56,100 --> 00:12:59,367 There was actually some planning, calculating that went to it, 96 00:12:59,367 --> 00:13:01,200 because he had to pretend to fall asleep. 97 00:13:01,200 --> 00:13:02,467 I think he studies... 98 00:13:02,467 --> 00:13:06,166 It's sort of like a-- you know, a reptile studying for prey. 99 00:13:07,367 --> 00:13:10,266 The thoughts on his mind, he stopped saying it, yet... 100 00:13:10,266 --> 00:13:12,667 Then he talks about going into the bathroom. 101 00:13:12,667 --> 00:13:16,000 It's a nice description of what we call depersonalization, 102 00:13:16,000 --> 00:13:18,367 where a person has an altered perspective 103 00:13:18,367 --> 00:13:20,233 of their physical body. 104 00:13:21,367 --> 00:13:24,967 They may feel taller or shorter than they actually are. 105 00:13:24,967 --> 00:13:28,667 And they may feel like they don't quite recognize themselves in the mirror. 106 00:13:28,667 --> 00:13:31,266 And we know that those states are associated with 107 00:13:31,266 --> 00:13:32,867 chemical changes in the brain. 108 00:13:32,867 --> 00:13:35,667 It's an indicator that there's stress going on. 109 00:14:19,467 --> 00:14:21,900 This narrative that Peter's since describing to them 110 00:14:21,900 --> 00:14:23,467 about having a monster inside of him 111 00:14:23,467 --> 00:14:25,767 can be challenging for detectives 112 00:14:25,767 --> 00:14:28,467 because now they're trying to understand 113 00:14:28,467 --> 00:14:30,767 whether or not he has a true mental illness. 114 00:14:30,767 --> 00:14:33,166 "Is he dissociating? Is he psychotic?" 115 00:14:34,400 --> 00:14:37,100 Usually people that have psychosis, 116 00:14:37,100 --> 00:14:38,700 which is a thought disorder, 117 00:14:38,700 --> 00:14:41,266 encompassed by delusions, hallucinations, 118 00:14:41,266 --> 00:14:44,000 disorganized thought process and disorganized behavior. 119 00:14:44,000 --> 00:14:45,900 He doesn't have that. 120 00:14:45,900 --> 00:14:48,266 He is somewhat organized in his behavior 121 00:14:48,266 --> 00:14:50,967 and he is definitely organized in his thought process. 122 00:14:50,967 --> 00:14:54,500 He's telling us exactly what he's doing, in detail. 123 00:14:54,500 --> 00:14:55,834 From A to Z. 124 00:15:33,266 --> 00:15:34,634 [sighs] 125 00:17:16,000 --> 00:17:19,367 If it's overkill, I think we could say he's-- 126 00:17:19,367 --> 00:17:21,667 he's delivering rage and anger 127 00:17:21,667 --> 00:17:25,066 that belonged to more than Sandy, that this comes from the past. 128 00:17:26,567 --> 00:17:29,367 So, my assumption is that Sandy represents 129 00:17:29,367 --> 00:17:32,166 whatever feelings he has about Mom. 130 00:17:32,166 --> 00:17:35,433 And she is the target of all that rage. 131 00:18:44,000 --> 00:18:46,467 [Dr. Chriscelyn] Peterson has demonstrated, from time to time, 132 00:18:46,467 --> 00:18:48,166 some self-awareness. 133 00:18:48,166 --> 00:18:50,600 And here, at the end, we see that 134 00:18:50,600 --> 00:18:53,700 he knows he probably should feel bad. 135 00:18:53,700 --> 00:18:55,667 But at the same time, 136 00:18:55,667 --> 00:18:58,867 he's got some impression management he's trying to uphold. 137 00:18:58,867 --> 00:19:02,767 And that is that he's trying to portray himself 138 00:19:02,767 --> 00:19:04,266 as a monster. 139 00:19:04,266 --> 00:19:06,100 It leaves you to believe 140 00:19:06,100 --> 00:19:09,200 that any remorse he might actually display, 141 00:19:09,200 --> 00:19:11,233 is likely to be superficial. 142 00:19:46,367 --> 00:19:48,266 [man] All your demons, 143 00:19:48,266 --> 00:19:50,533 could murder for nothing more than pleasure. 144 00:19:52,567 --> 00:19:54,700 How proud your parents 145 00:19:54,700 --> 00:19:56,533 and your family must be of what you've done? 146 00:19:57,467 --> 00:19:58,567 [sniffs] 147 00:20:00,200 --> 00:20:01,200 I hope you rot in hell. 148 00:20:01,200 --> 00:20:02,867 [narrator] When the judge asked, 149 00:20:02,867 --> 00:20:05,166 Peterson had nothing to say.