Psychopath' is perhaps a word that gets used pejoratively often enough that we forget its true meaning. But if ever there was a psychopath, it has got to be Ed Kemper, the infamously brutal serial killer. As a 15-year-old Kemper shot and killed his grandparents, and eight years later he would go on to slaughter and dismember six college students in California. He beat his own mother to death with a hammer and broke her best friend's neck. Kemper is still alive, now 71, and still incarcerated at the California Medical Facility in Vacaville, and has been interviewed a number of times. In this masterful true crime story, author Dary Matera tells Kemper's whole story, interweaving insights from Kemper himself into this gruesome tale.