Fact: A psychopath is 6 times more likely to commit a new crime after release from prison. Fact: Some forms of group therapy make psychopaths more likely to commit a new crime compared to no treatment at all. Fact: A psychopath is born every 47 seconds. Kent Kiehl is the 'Psychopath Whisperer', a neuroscientist who has dedicated his career to understanding what makes a mind turn criminal. Are psychopaths 'evil' and untreatable, or do they suffer from a mental illness comparable to schizophrenia or epilespsy? Do they - do we - have free will? Based on breathtaking research, including personality surveys and brain imaging scans of thousands of criminals, Kiehl pinpoints the biological machinery of psychopathy - and offers a radical new perspective on identifying & treating the psychopaths in our midst.