Overview: Mother Paige Birgfeld went missing in 2007 and her remains were found five years later. A decade on, police closed the net on a local mechanic.
Overview: In 1973, Dawn Magyar's body was found two months after she had vanished. Twenty-eight years on, advances in forensics helped solve the case.
Overview: In 1999 and 2000, women began disappearing from Detroit's thriving areas of prostitution. No one suspected that John Eric Armstrong, a seemingly normal father was actually a killer.
Overview: Over a 25-year career of murder, Richard Biegenwald killed at least six people as he sought out ever more violent and inventive ways of dealing death.
Overview: For Richard Kuklinski, crime was his way of life. As a professional murderer, his unusual methods led to a disturbing nickname, The Iceman.
Overview: When police in Colorado interrogated Richard Paul White about the murder of his friend, he began confessing to even more horrifying crimes.
Overview: Billy Mansfield Jr murdered at least five victims, but investigators suspect the extent of his serial killing is still to be revealed.
Overview: As well as being a well-spoken, well-respected computer expert, Randy Kraft was a serial killer suspected of killing more than 60 victims.
Overview: Working as a truck driver, serial killer Wayne Adam Ford strangled and dismembered his victims before dumping their bodies in creeks and rivers
Overview: After Jarrae Estepp's body was found at a recycling centre, police discovered that her murderer, Steven Dean Gordon, had killed before.