Imagine how you would feel if you woke up one day and learned that your best friend was the most prolific serial killer in America and most of his victims looked like you. That was the start of a forty-year quest to understand the mind of a killer and friend. The search led to others like him and their dark compulsions. How can they murder multiple human beings without remorse? The Ripper's Children: Inside the World of Modern Serial Killers examines how their murderous drives may originate. Can serial murderers control their killing sprees? Are the causes social, genetic, or biochemical? The book sheds light on the blackest corner of the human mind. This book may cause you to take a closer look at your relatives, friends, and neighbors.