The Dexter Killer

Inside the mind of murderer Mark Twitchell. Newly revealed letters from the man police say wanted to be like fictional serial killer Dexter. "48 Hours" contributor Troy Roberts reports. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices