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The identity of the perpetrator is currently unknown. One eyewitness told Fox News the gunman was a young Asian man believed to be a student, possibly in his early 20s[citation needed] wearing a maroon cap and a black leather jacket,[9] or possibly a bulletproof vest.[13] He committed suicide inside Norris Hall by a self-inflicted shot to the head.[4] He was believed to have used either two 9 mm. caliber handguns or a 9 mm. caliber handgun and a .22 caliber handgun.[9] Authorities said that the gunman carried no identification.[citation needed]
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There's a cell phone video that shows police surrounding the building while the shooting was taking place (gunshots clearly audible), but there are no reports of the gunman exchanging fire with the police. It's believed he killed himself just before police arrived.