What makes a serial killer? Only one man really knows. FBI Special Agent & expert in criminal profiling & behavioural science John Douglas. A man who has looked evil in the eye & made a vocation of understanding it. Now retired Douglas can let us inside the FBI elite serial crime unit & into the disturbed minds of some of the most savage serial killers in the world. The man who was the inspiration for Special Agent Jack Crawford in The Silence of the Lambs & who lent the films makers his expertise explains how he invented & established the practice of criminal profiling; what it was like to submerge himself mentally in the world of serial killers to the point of becoming both perpetrator & victim; & individual case histories including those of Jeffrey Dahmer Charles Manson Ted Bundy & the Atlanta child murders. With the fierce page-turning power of a bestselling novel yet terrifyingly true Mindhunter is a true crime classic.