Shooter kills himself in parking lot

Soldiers listen in the wings as Lt. Gen. Mark Milley address the media during a news conference at the main gate to Fort Hood, Wednesday, April 2, 2014, in Fort Hood, Texas. A soldier opened fire Wednesday on fellow service members at the military base, killing three people and wounding 16 before committing suicide, authorities said. (AP Photo/Eric Gay)
Soldiers listen in the wings as Lt. Gen. Mark Milley address the media during a news conference at the main gate to Fort Hood, Wednesday, April 2, 2014, in Fort Hood, Texas. A soldier opened fire Wednesday on fellow service members at the military base, killing three people and wounding 16 before committing suicide, authorities said. (AP Photo/Eric Gay)

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    Shooter kills himself in parking lot

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The shooter at Fort Hood was an Iraq veteran being treated for mental health issues.