Learn about the early years of one of America's most infamous serial killers, Gary Ridgway, who was convicted of murdering 49 people.

The Night Stalker, sentenced to death in 1989 for 13 murders, escaped execution when he died of natural causes in 2013.

Some of the most infamous criminals in history experienced murders first-hand before they starting doing the killing themselves.

Decades after a series of unsolved murders of redheaded females throughout the 1980s, a profile of a mysterious serial killer known as "The Bible Belt Strangler" emerged.

We speak with experts about the various reasons why notorious murderers become targets themselves while behind bars.

A&E True Crime spoke to Zeman about the findings that made him, along with investigative journalist Maury Terry, question the official account that serial killer David Berkowitz acted on his own.

Read about the death of the businessman and children's entertainer, who liked to dress as 'Pogo the Clown' and was convicted in March 1980 of murdering 33 boys and young men, making him the worst serial killer in American history at the time.

Rather than deny or confess, some murderers blame others for their horrendous crimes.

In the late 1960s, Liza Rodman spent summers hanging out with Tony Costa, the handyman at the Royal Coachman hotel, where her mother worked. One of the many people Liza's mom enlisted to watch the 8-year-old and her sister, Tony was also a serial killer.

Investigative historian Peter Vronsky explains how Edmund Kemper, Ted Bundy, Jeffrey Dahmer and others reached celebrity status during the 'Golden Age' of American serial killing.