"The Hillside Strangler," Kenneth Bianchi, was a serial killer that terrorized Los Angeles between October 1977 and February 1978. But what cops didn't know was that he had a killing accomplice – his own cousin! During this time, Kenneth and his cousin Anthony went on a spree of kidnappings, rapes, and murders in the area and claimed the lives of 10 innocent people. Because the bodies of the victims were usually found on hillsides, the infamous "Hillside Strangler" name was born. When Kenneth was caught in 1979, he ratted out Anthony, and both cousins were sentenced to life in prison.

The "Playmate Killer," Paul Snider, was the ex-husband of Playboy Model Dorothy Stratten. Snider was one of the creators of Chippendales, the male strip club chain, but he is most remembered as the killer of Stratten. Their marriage lasted barely a year. When Stratten developed a romantic relationship with acclaimed film director Peter Bogdanovich, Snider's jealousy led to murder-suicide. Stratten was killed by Snider in the Los Angeles apartment they had once shared. On the same day, Snider killed himself. Police believe he raped Stratten and sexually abused her corpse as his last twisted obsession of the Playmate of 1980.