Gunnery Sgt. Jack Coughlin's autobiography, Shooter, describes his experiences as the top-ranked marine sniper in the Iraq War. Coughlin is also the author, with Donald A. Davis, of the Kyle Swanson Sniper Novels Kill Zone, Dead Shot, Clean Kill, and An Act of Treason. Coughlin grew up in Waltham, Massachusetts, and joined the Marines when he was 19. He served with the Marines during the drive to Baghdad and has operated on a wide range of assignments in hot spots around the world.