Watch Deranged Killers online: Episode 5 Hillside Strangler

From October 1977 to February 1978, ten young women were found dead in and around Los Angeles. Dubbed the ‘Hillside Strangler’, the killer remained at large for a year after the last of his victims was discovered. As this episode of Deranged Killers details, when the Strangler was finally caught, ‘he’ turned out to be ‘they’; security guard Kenneth Bianchi and his cousin, Angelo Buono. Investigators relive every step in the case, from the discovery of the first victim to the 2002 death of one of the killers in jail. At every stage of the story, we'll hear from insiders and experts, including investigators who worked the case and people who knew the killers.

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