"We believe he's a young white male, maybe in his early 20s. He was dressed in all black, tactical-type gear and was wearing a ballistic vest," said Freeman Martin, regional director of the Texas Department of Public Safety.
The shooter, who was found dead, was armed with a "Ruger AR assault-type rifle," he said.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
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