This is the disturbing case of Kenneth Bianchi and Angelo Buono, known as the Hillside Stranglers. Between 1977 and 1978, these two cousins terrorized the Los Angeles area, abducting and murdering at least ten young women and leaving their bodies on the city's hillsides. We delve into the backgrounds of these two men, how they embarked on their killing spree, and the investigation and manhunt that eventually led to their capture.