FBI presumes deadly Navy base shooting was "act of terrorism" Updated on: December 8, 2019 / 7:26 PM / CBS/AP The FBI said Sunday that it will "work with the presumption that this was an act of terrorism" after a shooting at a Florida Navy base left three sailors dead. The gunman has been identified as Mohammed Saeed Alshamrani, 21, a Saudi national who was a naval student at Naval Air Station Pensacola.