NEW : 1 sailor is unaccounted for , the Pentagon says . Another sailor and 2 airmen were wounded , the Pentagon says . Buckley AFB in Aurora , Colorado , is the closest military base to the scene of the shootings . Buckley in Colorado , Aurora , is the closest base to the shooting scene . Buckley AFB 's traumatic stress response team has been activated .
NEW : 1 sailor is unaccounted for , the Pentagon says . Another sailor and 2 airmen were wounded , the Pentagon says . Buckley in Colorado , Aurora , is the closest base to the shooting scene . Buckley AFB 's traumatic stress response team has been activated .