SCHRIEVER AIR FORCE BASE, Colo. -- 50th Security Forces Squadron Investigator, Staff Sergeant Shalahn Fisher, interviews "witnesses" during an active shooter exercise at Schriever AFB, Colorado. The Peterson/Schriever Garrison conducted the exercise at Schriever AFB, Colorado Wednesday, 14 April, 2021. It was staged at the 310th Space Wing headquarters and held to evaluate the response and effectiveness of the base's emergency response agencies. (U.S. Space Force Photo/Dennis Rogers)

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Photo by: Dennis Rogers |  VIRIN: 210414-F-WR604-0030.JPG