Book excerpt: Ted Bundy, BTK, Lonnie Franklin Jr. (“the Grim Sleeper”), and Anthony Sowell (“the Cleveland Strangler”)—what made these men into serial killers? Examination by authorities and professionals has given some insight into the minds of these serial killers and others, and psychology students will learn about the most current psychoanalysis of these modern-day murderers. The text also includes a personality disorder self-assessment quiz readers can take to learn more about psychopathy—the most common psychological condition for serial killers.