Staff Sgt. Cody McCarthy, 167th Airlift Wing security forces, briefs personnel from the Berkeley County Sheriff's Department, during an active shooter exercise at the 167th AW, Aug. 30, 2018. A lone gunman shot multiple vicitms in the base civil engineering building as part of the training scenario at the Martinsburg, W.Va. air base. Active shooter training is conducted annually at the 167th AW (U.S. Air National Guard photo by Senior Master Sgt. Emily Beightol-Deyerle)