It began with a string of burglaries in the 1970s. Then, a series of sexual assaults. And finally, a dozen murders or more. At least three different crime sprees in California over the course of two decades have now been attributed to one suspect. The Golden State Killer.
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Most Notorious: The Golden State Killer, Part 2

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.