Jonathan Kellerman is one of the world's most popular authors. He has brought his expertise as a child psychologist to numerous bestselling tales of suspense (which have been translated into two dozen languages), including thirteen previous Alex Delaware novels; The Butcher's Theater, a story of serial killing in Jerusalem; and Billy Straight, featuring Hollywood homicide detective Petra Connor. His most recent novel is Monster. He is also the author of numerous essays, short stories, and scientific articles, two children's books, and three volumes of psychology, including Savage Spawn: Reflections on Violent Children. He and his wife, the novelist Faye Kellerman, have four children.