Joseph James DeAngelo Jr. is an American serial killer, serial rapist, burglar, peeping tom, former police officer, and former mechanic who committed at least 13 murders, 51 rapes, and 120 burglaries across California between 1974 and 1986. He is responsible for three known separate crime sprees throughout the state, each of which spawned a different nickname in the press, before it became evident that they were committed by the same person.

Ricardo Leyva Muñoz Ramirez, known as Richard Ramirez, dubbed the Night Stalker, the Walk-In Killer and the Valley Intruder, was an American serial killer and sex offender whose crime spree took place in California from June 1984 until his capture in August 1985. He was convicted and sentenced to death in 1989, and died while awaiting execution in 2013.