July 16, 2015 Chattanooga, Tennessee
5 killed, 3 injured:
A gunman opened fire on two military facilities over seven kilometers apart, killing four Marines and a Navy sailor. The man identified by federal authorities as Mohammod Youssuf Abdulazeez, 24 then drove to a Navy-Marine training centre and opened fire before he was neutralized.
November 5, 2009 Ft. Hood, Texas
13 killed, 32 injured
Maj. Nidal Malik Hasan, an Army psychiatrist, allegedly shoots and kills 13 people and injures 32 others in a rampage at Ft. Hood, where he is based. Authorities allege that Hasan was exchanging emails with Muslim extremists including American-born radical Anwar Awlaki.