DALLAS — A masked gunman was fatally shot on Monday after open firing on a federal building in Dallas.<br /><br />The Dallas Morning News reports that according to witnesses, gunman Brian Clyde parked his car at a street corner in front of the Earle Cabell Federal Building in Dallas.<br /><br />He then ran and began shooting at the building at 8:40 a.m.<br /><br />According to the publication, security personnel on the first floor pushed people to the ground as Clyde fired shots outside.<br /><br />The 22-year-old former army soldier was shot while exchanging gunfire with federal officers who responded to the incident. He died at the scene.<br /><br />Police inspected Clyde's 2003 Nissan Altima, and found a suspicious device, which they then detonated using controlled explosions.<br /><br />Authorities say they are looking into a motive for the attack, and are actively looking into Clyde's social media presence.<br /><br />His Facebook page was taken down Monday afternoon, but online posts included rants about the U.S. government, and photos of ammunition, according to CBS DFW.
