Descent of a Serial Killer

A former police officer and suspected serial killer, Gerard John Schaefer Jr. was imprisoned in 1973 for murders he committed while serving as a sheriff's deputy in Florida.

Known as the Gainesville Ripper, Daniel Harold Rolling was an American serial killer who murdered five Florida students over four days in late August 1990; Fox investigates.

Michael Gargiulo is a convicted American who is dubbed the "Hollywood Ripper" as well as the "Chiller Killer" for the series of brutal murders he carried out.

Cary Anthony Stayner is an American serial killer and the brother of kidnapping victim Steven Stayner. Stayner was convicted of the murders of four women in 1999.

Randy Kraft, known as the Scorecard Killer, the Southern California Strangler and the Freeway Killer, rapes, tortures and murders 16 young men between 1972 and 1983.

Serial killer Cary Stayner is convicted of the murders of four women in 1999; Stayner is sentenced to death for the four murders.