FORT HOOD, TX (RNN) – Four people are dead, including the gunman, and 16 were injured in a shooting at Fort Hood in central Texas on Wednesday.
The gunman has been identified by the Associated Press as Specialist Ivan Lopez.
The motive for the shooting was not confirmed, but Lt. General Mark A. Milley said the shooter fired shots in two different buildings. He identified the weapon the shooter used as a Smith and Wesson .45 semi-automatic pistol, and Milley said it had been "recently purchased in the area." The weapon was not registered on post.
The shooter was found dead of a self-inflicted gunshot wound. Milley said the incident has not been linked to terrorism, but nothing has been ruled out.
Milley would not confirm the suspect's name, but said he had served four months in combat in Iraq in 2011; he said the suspect was being treated for "behavioral, health and mental issues," including anxiety and depression, but had not yet been diagnosed with post traumatic stress syndrome. The shooter's next of kin, including his wife, have not been notified, Milley said.
CNN reported Thursday morning that the wife has been notified and is cooperating with authorities.
Several media reports said the shooting stemmed from a soldier-on-soldier conflict, though Fort Hood officials would not release a motive.
The shooter's body was found in the parking lot after he had been engaged by military police. All of the injured and killed were military personnel.
Hundreds of people swiftly left the base once an all-clear was given nearly four hours after the shooting. The traffic included parents picking up children from a locked-down elementary school. The post was put on lockdown, and personnel on post were asked to shelter in place immediately following the shooting.
Scott and White Memorial Hospital had victims with a variety of injuries being treated, including gunshot wounds to their extremities, abdomen, chest and neck. Their conditions ranged from stable to "quite critical," according to Dr. Glen Couchman, chief medical officer at Scott and White.
Three patients were in critical condition as of Thursday morning, according to Dr. Matthew Davis of Scott and White Hospital.
The patients were transferred from the Carl R. Darnall Medical Center, located on post at Fort Hood, to the Level I trauma center in Temple, TX.
KCEN interviewed a witness on the post earlier Wednesday who said military police had escorted a large group of soldiers and civilians, including children, out of a support operations building with their hands in the air. The people were face down on the ground before being moved away from the building.
KCEN-TV reported an active shooter at Fort Hood around 4:30 p.m. CT.
One woman on post tweeted "all we hear is sirens" and that she was "sitting here on post in lockdown" with others.
Central Texas College posted on its website that classes on both their and Fort Hood's campus had been canceled for Wednesday.
Fort Hood also canceled all physical training exercises for Thursday, according to their official Facebook page.
In November 2009, Maj. Nidal Malik Hasan killed 13 people and wounded 32 others in a shooting rampage at Fort Hood – the worst mass murder at a military installation in U.S. history. He was sentenced to death in August 2013.
The 2009 shooting took place in Fort Hood's Soldier Readiness Processing Center, where troops were getting medical checkups before deploying to Afghanistan.
Fort Hood sits on 340 square miles, making it one of the largest military posts in the U.S. Located in Killeen, TX, the base houses the largest active-duty armored post in the entire U.S. armed Services.
About 41,000 soldiers work on Fort Hood. It is home to two divisions - 1st Cavalry Division and 1st Army Division West - and supports 12 units.
President Barack Obama and Secretary of Defense Chuck Hagel were informed of the shooting.
Obama said that the U.S. is "heartbroken" over the shooting at Fort Hood, and people there have "sacrificed more for freedom."
Texas Gov. Rick Perry released a statement, saying that Texans should stick together in the wake of another Fort Hood tragedy.
"Ft. Hood has proven its resilience before, and will again," the statement said. "Texas will support those efforts in any way we can, with any resources necessary. The thoughts and prayers of all Texans are with everyone affected by this tragedy."
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