37 years after his first killing, a career criminal is finally brought to justice. DNA collected from saliva on sealed envelopes connects the unsuspecting murderer to a series of vicious attacks spanning multiple states and decades.
 
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Deadly Divorce

Based on the iconic, Emmy-nominated series on A&E, this show explores some of the most difficult-to-solve murders, which stymied investigators and went cold, sometimes for decades. In fact, one-third of all murders in America remain open. But thanks to dogged investigators and breakthroughs in forensic technology, these cases become part of the rare 1% of cold cases that are ever solved. Cold Case Files is hosted by Paula Barros.