The New York City killer provides details of his 2011 killing spree that left four people dead and another four wounded, ending in a subway confrontation.

The New Hampshire killer provides grisly details of the 2005 slaying when he killed his 19-year-old girlfriend and their unborn child.

An exclusive interview with the death row inmate provides details of his 1994 killing spree when he beat and strangled six men while drifting through towns.

The Montana convict provides details of his 2006 murder of a 51-year-old former correctional officer when he stabbed and dumped her body in an alley.

An exclusive interview with the killer provides details of the 2011 murder of a young man, how he killed his victim, and a shocking revelation about his past.

The prison inmate who confessed to killing an Air Force sergeant outside of San Antonio, Texas, 11 years after the murder details that night's events.

The Missouri convict provides details of his 2002 killing spree when he shot and killed two people at a friend's in an exclusive interview.

The 23-year-old killer provides details of his 2005 invasion of a Texas Panhandle farmhouse to brutally kill the family inside in an exclusive interview.

An exclusive interview with the former Carolina Panthers football player provides details of the 1999 murder of his 24-year-old pregnant girlfriend.

A woman recounts how she managed to become the sole survivor of Angel Reséndiz, a serial killer who became known at The Railway Killer.

In 1975, William Bonin abducts 14-year-old David McVicker in California and then embarks on a killing spree; David recounts details about the Freeway Killer.

Madison Nygard recounts her dangerous close call with a serial killer at only 16 years old when a passing driver pulled over as she walked home from a party.

Josephina Rivera discusses her time spent as a captive in a basement, and she emphasizes how 43-year-old Gary Heidnik kidnapped four other women.

Josephina Rivera discusses her time spent as a captive in a basement, and she emphasizes how 43-year-old Gary Heidnik kidnapped four other women.

Survivors Morgan Rowan and Tali Shapiro discuss how they were targeted by Rodney Alcala, a serial killer who was convicted of five murders.

Chief of Detectives Robert Anzilotti suspects Richard Cottingham might be responsible for the unsolved murders of schoolgirls in the 1960s and 1970s.

Chief of Detectives Robert Anzilotti continues to do everything in his power to connect Richard Cottingham to the murders of several schoolgirls.