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.

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

There was nothing on the surface that raised red flags about Robert Hansen. The unassuming Anchorage native was married with children and was the successful owner of a bakery. But Hansen eventually confessed to killing 17 women in the Alaskan wilderness in a most heinous way.

Israel Keyes—a murderer who perplexed even the FBI's top minds in criminal profiling—traveled America leaving 'kill kits' with weapons and other items in secluded locations, picking them up before abducting and murdering a chosen victim.

Former FBI special agent John Douglas spent his 25-year career with the Bureau interviewing hundreds of America's most infamous killers, from Charles Manson and Ted Bundy to the 'BTK Killer,' Dennis Rader and more. The 'Mindhunter' author talks to us about his new book, 'The Killer Across the Table,' and his tried-and-true interview techniques.

True-crime author Michael Arntfield talks about homicide detective Pat Postiglione, who headed up Nashville's cold-case Murder Squad and solved dozens of unsolved murders, and how the country-music mecca became a murder hub.

Bryanna Fox, Ph.D, former FBI agent and researcher at the bureau's Behavioral Science Unit, talks to A&E True Crime about whether convicted serial killers are the key to catching active serial killers.

Wayne Williams has been in prison for almost 40 years after being convicted of murdering two men. Although he was never tried or convicted, the murders of 29 kids and young adults were attributed to him as well.

When you're paid to interview killers, you learn what to expect: lies, manipulation, and eventually, the truth.

A&E True Crime spoke to a psychologist and a criminal profiler about the serial killers featured on Mindhunter, and asked them what the show got right when it comes to their impulses and motives.