August 23, 1956

• Born in Frankfurt, West Germany
• Specialized in the study of the psychology of killing
• Lieutenant colonel in the United States Army
• Professor of psychology at West Point
• 1995 – Author – On Killing: The Psychological Cost of Learning to Kill in War and Society
• 1999 – Author – Stop Teaching Our Kids to Kill: A Call to Action Against TV, Movie and Video Game Violence
• 2004 – Author – On Combat: The Psychology and Physiology of Deadly Conflict in War and in Peace
• 2016 – Author – Assassination Generation : Video Games, Aggression, and the Psychology of Killing