Shamsud-Din Jabbar, 42, served in the Army on active duty from 2006 to 2015 and was deployed to Afghanistan in 2009, three U.S. defense officials said.
The suspect, a U.S. Army veteran who died in a shootout with police officers, has been identified by the F.B.I. as Shamsud-Din Bahar Jabbar, a U.S. citizen.
Law enforcement officials in the latest press conference advised they do not believe that Jabbar was "solely responsible" for the attack.
