Maj. Tyler Stark, left, 333rd Fighter Squadron assistant director of operations, and Dr. Mike Clumpner, right, President and Chief Executive of Threat Suppression Inc., pose for a photo before an active shooter seminar June 6, 2019, at Seymour Johnson Air Force Base, North Carolina. Both Stark and Clumpner exchanged information on the Columbine shooting from 1999. Stark was a high school student during the tragedy. (U.S. Air Force photo by Senior Airman Miranda A. Loera)
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