Air Force Photo by Master Sgt. Christopher Boitz
Maj. Stephen Del Bagno, Thunderbird 4/Slot Pilot, preforms preflight checks in his F-16 Fighting Falcon at Nellis Air Force Base, Nev., Jan. 26, 2018. Del Bagno was killed when his aircraft crashed on the Nevada Test and Training Range during a practice aerial demonstration on April 4, 2018.