The Dexter Killer: Inside the Mind of Mark Twitchell 🩸 | Full Episode

Inside the mind of murderer Mark Twitchell — letters from the man police say wanted to be like fictional serial killer Dexter. "48 Hours" contributor Troy Roberts reports. Watch more full episodes of "48 Hours" on Pluto TV.

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True crime. Real justice. "48 Hours" investigates the most intriguing crime and justice cases that touch on all areas of the human experience including greed and passion. "48 Hours," which premiered in 1988, has developed a rich history of original reporting and impact journalism that has helped exonerate wrongly convicted people, caused cold cases to be reopened and solved, and along the way changed lives.

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