"The FBI's legendary pioneer of criminal profiling and inspiration behind the hit Netflix show Mindhunter, John Douglas has spent decades working with law enforcement to understand the criminal mind and hunt violent predators. Now Douglas, along with his long-time collaborator Mark Olshaker, turns his keen eye to four of the most disturbing killers he has confronted. Offering never-before-revealed details about his interview techniques and profiling...

Includes material on "the Trailside Killer in San Francisco, the Atlanta child murderer, the Tylenol poisoner, the man who hunted prostitutes for sport in the woods of Alaska, and Seattle's Green River killer ..."