I think I was looking for what makes psychopaths tick. I'm interested in the nature vs. nurture debate and if society can do anything to prevent the disastrous results of psychopaths on the rampage.

The author admitted that both his father and his best friends were psychopaths, despite his best friend doing an unforgivable thing to him. In the next breath, he went on to defend their personalities.

The author makes a case for psychopaths in this book and argues that everyone's personality runs on a circular spectrum. Instead of lumping all psychopaths together as sadists, he argues that psychopaths have some qualities that can make them better adapted than those who are more empathetic than them - to a point. I was disappointed that this book ended up being more of a treatise on the benefits of psychopathy than reducing what he'd learned from interviewing psychopaths to prevent people from falling victim to them.