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.

#48hours #crime #mystery

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.

Subscribe to the "48 Hours" YouTube channel: https://youtube.com/48hours
Watch full episodes of "48 Hours": https://cbsnews.com/48-hours/full-episodes/
Listen to the "48 Hours" podcast: https://link.chtbl.com/48-Hours
Listen to the "My Life of Crime with Erin Moriarty" podcast: https://link.chtbl.com/CBSNewsMLOC
Follow "48 Hours" on Instagram: https://instagram.com/48hoursCBS/
Like "48 Hours" on Facebook: https://www.facebook.com/48hours
Follow "48 Hours" on Twitter: https://twitter.com/48hours
Subscribe to our newsletter: https://cbsnews.com/newsletter/
Download the CBS News app: https://cbsnews.com/mobile/
Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h

For video licensing inquiries, contact: licensing@veritone.com