Chapter
Family Speaks Out on Mark Twitchell's Murderous Rampage
17:12 - 21:49 (04:37)
Mark Twitchell's family speaks up about his deteriorating mental state that ultimately led to the murder of Johnny Altinger. His family shares how Mark's behavior had greatly changed, and his obsession with the television show "Dexter" added to his delusions.
Clips
Dean allegedly saw disturbing things during a short stay with a couple.
17:12 - 18:46 (01:34)
Summary
Dean allegedly saw disturbing things during a short stay with a couple. A few years earlier, he lived briefly with Mark and Marybeth and thought his little brother crazy for staying with Marybeth despite her short temper and other issues.
ChapterFamily Speaks Out on Mark Twitchell's Murderous Rampage
EpisodeAs Darkness Fell
PodcastDateline NBC
A family's long list of grievances against Marybeth, who had been diagnosed as bipolar, seem to have played a part in the tragic death of Mark.
18:46 - 20:11 (01:25)
Summary
A family's long list of grievances against Marybeth, who had been diagnosed as bipolar, seem to have played a part in the tragic death of Mark. Despite being admitted to a psychiatric hospital over a year before the incident, Marybeth was still unwilling to forgive Mark for her hospitalization.
ChapterFamily Speaks Out on Mark Twitchell's Murderous Rampage
EpisodeAs Darkness Fell
PodcastDateline NBC
The RCMP investigated Marybeth's death and reportedly ruled out murder, despite suspicions from Susan that it was a possibility due to Dean making phone calls to them after the shooting incident.
20:11 - 21:49 (01:37)
Summary
The RCMP investigated Marybeth's death and reportedly ruled out murder, despite suspicions from Susan that it was a possibility due to Dean making phone calls to them after the shooting incident.