Jillian Lauren, author of 'Behold the Monster: Confronting America's Most Prolific Serial Killer,' speaks with A&E True Crime about her relationship with Samuel Little, the most prolific serial killer in U.S. history.

Was bullying during his early years to blame for Joel Rifkin becoming one of the most prolific serial killers in New York history?

Peter Chadwick landed himself on the U.S. Marshals Service's '15 Most Wanted' list after he killed his wife, faked his own kidnapping, faced charges, jumped bail and fled to Mexico.

Barbara Butcher, a former New York City death investigator, on what the work entails and which cases have stuck with her decades later.

After Tom Kolman's mysterious death, Kingston, New York dentist Gilberto Nunez, who pretended he was with the CIA and was having an affair with Kolman's wife, was tried for his murder.

New York's infamous serial killer, who murdered six people in the 1970s and is up for parole in 2024, is at Shawangunk Correctional Facility. But will he be released?

Although it's rare for women to kill other women for their unborn babies, when it happens, the motive is usually beyond wanting a child.

The creation of the federal "Supermax" prison in Colorado, and its use of solitary confinement, was the result of the actions of inmates Thomas Silverstein and Clayton Fountain.

Five of the Chicago serial killer's 33 victims from the 1970s remain unidentified, but the Cook County Sheriff's office is continuing the work to ID them.

In 2003, Steven Mack, a homicide detective with the Huntington Beach Police Department, took a leading role in retrying a twice-overturned murder case against Rodney Alcala. His efforts led to the uncovering of a prolific serial killer.