cadets out of the country this after the f.b.i. found they were posting jihadist and anti-american material online or looking at child pornography. now, saudi arabia s a key ally, and the saudis were here for aviation training on military bases, but the f.b.i. says it only found out what the saudis were doing while investigating last month s shooting at a florida air base. a saudi pilot killed three sailors and injured eight others at the pensacola naval air station. tonight the attorney general is calling the shooting an act of terror. he s asking apple to help the f.b.i. unlock the killer s iphone. catherine herridge leads us off tonighth t new d. this was an act of terrorism. reporter: attorney general william barr said today mohammed saeed alshamrani was motivated by jihadist ideology. the shooter posted a message on september 11th of this year stating, the countdown has begun. reporter: the f.b.i. investigation indicates that the