Cold Case Files: Serial Rapist Captured from DNA on Licked Envelope He Sent to Police | A&E

A serial rapist seals his own fate when he sends a taunting letter to police, who use the DNA extracted from the saliva in the envelope's seal to track him down, in this clip from Season 6, Episode 4. #ColdCaseFiles Stay up to date on all of A&E's premieres at aetv.com/schedule Subscribe for more from Cold Case Files and other great A&E shows: http://aetv.us/subscribe-ae Find out more about the show and watch full episodes on our site: http://www.aetv.com/shows/cold-case-f... Check out exclusive A&E content: Website - http://www.aetv.com/ Facebook:   / aetv   Twitter:   / aetv   Instagram:   / aetv   TikTok:   / aetv   "Cold Case Files" chronicles the journeys of the detectives who reopen cold cases. The detectives uncover new twists and startling revelations using breakthroughs in forensic technology and the influence of social media to help crack the cases-bringing long-awaited closure to the victim's families and friends. A&E® leads the cultural conversation through high-quality, thought provoking original programming with a unique point of view. Whether it's the network's distinctive brand of award-winning disruptive reality or groundbreaking documentary, A&E makes entertainment an art form. Visit us at aetv.com for more info. Stay up to date on all of A&E's premieres at aetv.com/schedule