Lt. Col. Robb Rigtrup, 306th Intelligence Squadron commander, and family members of Staff Sgt. Richard Dickson attend a memorial service honoring four Airmen at Beale Air Force Base, Calif., April 25, 2014. Dickson was a native of Rancho Cordova, Calif. (U.S. Air Force photo by 2nd Lt. Siobhan Bennett/Released)