Lt. Col. Dave Grossman is Professor of Military Science at Arkansas State University. His career includes service in the US Army as a sergeant in the US 82nd Airborne Division, a platoon leader in the 9th (High Tech Test Bed) Division, a general staff officer, a company commander in the 7th (Light) Infantry Division as well as a parachute infantryman and a US Army Ranger and teaching psychology at West Point.
He is the author of:
- On Killing (1995) (ISBN:0316330116), an analysis of the psychology of killing both in the military and in civilian society, which he calls killology.
- On Combat (2004) (ISBN:0964920514), "a ground-breaking examination of what it takes to perform, cope and survive in the toxicity of deadly combat as a soldier in a foreign land and a police officer in the mean streets of urban America.".