Horn retired from the US Army in 2000 after a 21-year career as an infantryman and foreign area officer. He served in Italy, Portugal, and Germany as well as at Fort Benning, Fort Irwin, Fort Leavenworth, Fort Bragg, and the Pentagon in the United States. While on active duty, he earned his Ranger tab, Air Assault Badge, and Master Parachutist Badge.
From the military, Horn went to work as a defense (military, not football) analyst for a major defense contractor in the Washington, DC area. After 15 years working on future warfare studies, he took a second retirement in 2015.
Horn is a graduate of a small engineering college on the Hudson that once ranked 299th out of 300 on a list of party schools. Not content with the rigor of that education, he later attended #300, the University of Chicago, for a Masters in European History. He also graduated from the US Army Command and General Staff College and the Portuguese Staff College.
Horn is the author of the fan-favorite and indispensable Offensive ID Series, released in the offseason every year and detailing every head coach or offensive coordinator's offensive trends and philosophy. It's a must-read for every subscriber prior to draft time.
He lives in Arlington, VA with his wife, Gayla, and dog, Lucy. Besides football, his interests include travel, history, cooking, eating well, and volunteer work at a local animal shelter.