4/20/2011 - Officer Jonathan King, 96th Security Forces Squadron, enters the dining facility first in search of the “suspects” during an active shooter exercise at Eglin Air Force Base, Fla., April 20. Security Forces personnel entered the facility where two “shooters” were holding hostages. They quickly subdued or killed the “shooters” and evacuated the hostages. (U.S. Air Force photo/Samuel King Jr.)

4/20/2011 - The “shooter” threatens and intimidates patrons of the dining facility at the beginning of an active shooter exercise at Eglin Air Force Base, Fla., April 20. Security Forces personnel entered the facility where two “shooters” were holding hostages. They quickly subdued or killed the “shooters” and evacuated the hostages. (U.S. Air Force photo/Samuel King Jr.)

4/20/2011 - Security Forces personnel exit the kitchen area of the dining facility with a “suspect after a stand-off during an active shooter exercise at Eglin Air Force Base, Fla., April 20. Security Forces personnel entered the facility where two “shooters” were holding hostages. They quickly subdued or killed the “shooters” and evacuated the hostages. (U.S. Air Force photo/Samuel King Jr.)

4/20/2011 - Officer Tracy McDaniel, 96th Security Forces Squadron, escorts a “suspect” out of the dining facility after a stand-off during an active shooter exercise at Eglin Air Force Base, Fla., April 20. Security Forces personnel entered the facility where two “shooters” were holding hostages. They quickly subdued or killed the “shooters” and evacuated the hostages. (U.S. Air Force photo/Samuel King Jr.)