Staff Sgt. Souridet Thongrivong, 8th Civil Engineer Squadron pavements and heavy equipment craftsman, shows another 8th CES Airman where the shooter was during a training exercise at Kunsan Air Base, Republic of Korea, Apr. 10, 2014. The 8th SFS trained the Red Devils on communication tactics, apprehending suspects and manning defensive positions. (U.S. Air Force photo by Staff Sgt. Jessica Haas/Released)