Oxygen True Crime continues its push into deep-catalog serial killer stories with a new episode of Unknown Serial Killers of America landing Sunday, May 25 at 7:00 PM. The docuseries shifts its focus to Southern California, reexamining the William Suff case—a string of murders that terrorized Riverside in the early ’90s.
The episode unpacks a years-long investigation into the killings of thirteen women, mostly sex workers, whose disappearances sparked panic and pressure on local law enforcement. A break came when a survivor provided a detailed description, putting police on the trail of a man who had already slipped through the system once before.
The series, produced for Oxygen True Crime, prioritizes cases that never broke into the national spotlight—part of the network’s broader strategy to differentiate in the saturated true crime space by revisiting lesser-known but equally brutal stories.
