GREGORY K. MOFFATT has been a college professor for 19 years and a private practice therapist, specializing in children, since 1987. He has addressed hundreds of audiences, including law enforcement professionals, parenting groups, and schools on the topic of homicide risk assessment and regularly lectures at the FBI Academy at Quantico, Virginia. He is a Diplomat with the American College of Forensic Examiners. He writes a regular newspaper column addressing families and children and consults with business on violence risk assessment and prevention.