Tech. Sgt. Rouven Sefcik, 436th Medical Operations Squadron mental health flight chief, runs in the Medical Clinic lobby looking for potential victims during an active shooter exercise Sept. 12, 2017, at Dover Air Force Base, Del. Sefcik and Tech. Sgt Jason Walls, 436th MDOS family health flight chief, played the roles of active shooters who mortally wounded 436th Medical Group personnel and first responders, as well as taking numerous hostages during the exercise. ( Air Force photo by Roland Balik)

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Size: 5542px × 3703px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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