Why Do They Kill? How the FBI Identifies Serial Killers

Why does a criminal kill? What motives drive them? Resentment? Revenge? Desire? Thirst for attention and fame? One of the pioneers of criminal profiling, John Douglas, believes that this question is key to understanding the personality of the killer – and, consequently, to capturing them.

By answering the question "Why?", one can answer the question "Who?" – and solve the mystery by catching the maniac. 

Investigating various motives and methods of crimes, the legendary "Mindhunter" John Douglas discusses the most common types of serial and mass murderers. 

Through gripping stories – the cases of the Unabomber, Harvey Lee Oswald, the murder of Gianni Versace, and many others – the book shows why people commit crimes and teaches us to recognize potential killers before it is too late.