Aileen Carol Wuornos () (née Pittman; February 29, 1956 – October 9, 2002) was an American serial killer. Between 1989 and 1990, while engaging in street prostitution along highways in Florida, Wuornos shot, killed, and robbed seven of her male clients.

Ricardo Leyva Muñoz Ramirez (; February 29, 1960 – June 7, 2013), better known as Richard Ramirez, was an American serial killer, sex offender and burglar whose killing spree occurred in Greater Los Angeles and the San Francisco Bay Area in the state of California. From April 1984 to August 1985, Ramirez murdered at least fifteen people during various break-ins.