LUKE AIR FORCE BASE, Ariz.
Staff Sgt. Alexena Simien, 56th Operations Support Squadron air traffic controller, and Senior Airman Samuel Bricker, 56th OSS air traffic controller, unveil Senior Airman Scott Hill’s memorial wall during a dedication ceremony at Luke Air Force Base, Arizona, Oct. 26, 2015. Hill lost his battle with cancer and passed away May 18, 2014. The ceremony also retired Hill’s air traffic controller initials: HI. The initials are a special identifier for controllers and HI will be Hill’s at Luke forever. (U.S. Air Force photo by Senior Airman James Hensley)