Ridgway’s slayings began in 1982, when young runaways and prostitutes began disappearing from state Route 99 in south King County, Washington. He brought many of them to his home and strangled them, then left them in woodsy, remote sites. The first few bodies turned up along the now-notorious Green River. Dubbed the Green River Killer, Ridgway eluded the law until 2001, when King County sheriff Dave Reichert, the first officer assigned to the case in 1982, called a meeting to re-examine evidence using newly developed DNA-testing technology. The analysis produced a match between evidence from the victims and Ridgway, and he was charged with four counts of aggravated murder in December 2001. Ridgway eventually pleaded guilty to 48 counts of aggravated first-degree murder. Here are 23 creepy facts about this killer.