'Phrogging' is the crime of individuals secretly living in someone's home—a reference to how frogs leap from place to place. We investigate the many different forms of this crime and the danger it presents to victims.

Ron Franscell, author of 'ShadowMan,' speaks with us about the first case in which the profiling technique, often used by the FBI Behavioral Analysis Unit, successfully apprehended a suspect.

The ex-police sergeant was convicted of killing his third wife and is currently in prison, but hasn't been charged in the disappearance of Stacy Peterson, his fourth wife.

Ann Wolbert Burgess tells A&E True Crime about how her expertise in victimology aided the FBI's Behavioral Science Unit in their mission to capture rapists and serial killers in the 1970s and '80s.

Hired in 1921, James E. Amos was the first Black agent to work publicly for the FBI and worked high-profile cases involving murder, organized crime, Nazi spies and more during his 30-plus years of service.

The New Hampshire serial killer admitted to killing two men on her farm, but claims it was because God told her to punish pedophiles.

Many unanswered questions still remain about the death of U.S. Army soldier, Enrique Roman-Martinez, stationed at Fort Bragg, was found dead on May 22, 2020 in North Carolina.

Expert FBI profiler John Douglas shares how he turned the sophisticated and cruel tactics of murderer Larry Gene Bell against him.

In 2012, the Supreme Court's Miller v. Alabama verdict found that almost all juvenile offenders deserve a chance at release and must be resentenced.

A Philadelphia woman's parents have fought for 11 years to change their daughter's cause of death from suicide to homicide.