Army Lt. Gen, Mark A. Milley said that the shooter, who killed three people and wounded 16 others before killing himself, was a soldier with a history of "behavioral health and mental health issues" and had been seeking treatment for possible post-traumatic stress disorder.
"There is no indication that this incident is related to terrorism, though we are not ruling anything out and this incident remains under investigation," Milley said.
He added later: "I'm not ruling out terrorism. All I'm saying is that there's no indication of it at this time."
Milley said the motive for the shooting was not yet known and the incident was still under investigation.