Gunman killed in Dallas courthouse attack

(NBC News) A gunman was killed Monday moments after opening fire outside of a Dallas, Texas federal court building.

The gunman, identified as 22-year-old Brian Isaack Clyde, was armed with an assault rifle and dressed in tactical gear at the time of the shooting.

Witnesses say he began firing at the building’s entrance, then kept firing as he retreated to a nearby parking lot.

Dallas Morning News photographer Tom Fox was outside of the court building and managed to snap several images of Clyde during the assault.

“I just pulled up a long lens and looked through the viewfinder and saw the muzzle of the gun and the guy with the mask on and I just made some frames real quick,” Fox said.

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