1980s Washington. One of the most prolific serial killers of all time, Gary Ridgway, preyed on vulnerable young women, runaways and sex workers. With his un-assuming persona and habit of dumping bodies in the nearby Green River, Ridgway was able to commit mass murder for nearly twenty years, and get way with it. The fear that swept across the Pacific Northwest was palpable. This episode is sponsored by: Stamps.com - promo code: WHAT Cerebral Original music by Ben Krejci, Lee Rosevere, Kai Engel, and Daniel Birch. Additional music provided by Epidemic Sound. Licensed under Creative Commons: By Attribution 4.0 License.