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?

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.

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

During the 1970s, David Berkowitz, also known as 'The Son of Sam,' prowled New York City, fatally shooting couples in cars. By the time he was arrested in August 1977, he had killed six people and wounded seven others. Although the murders stopped after his arrest, several people who worked on the Son of Sam case are convinced Berkowitz didn't act alone.

Chris Watts, the Colorado man serving three life sentences for the brutal murder of his wife and two young daughters claims to have had a religious conversion behind bars and is now an evangelical Christian. Murderers David Berkowitz, Jeffrey Dahmer and Karla Faye Tucker also claimed to have found or rediscovered God after being incarcerated. We speak with experts about why so many notorious criminals might make such claims while behind bars.

Some of the most notorious serial killers of our time have something in common, beside their thirst for blood: They were all adopted. A&E True Crime talks to criminologist Dr. Scott Bonn to see whether there is any evidence of an adoptee-serial killer connection.

Killers who leave notes at crime scenes or mail missives to police and the press take a big risk. Read stories and watch videos about eight murderers who just had to put it in writing.