(AUSTIN, Texas) -- As previously reported, a gunman wearing a ski mask and brandishing a rifle entered a library at the University of Texas Austin Tuesday morning and fired several shots before taking his own life. At a press conference Tuesday, police identified the gunman as 19-year-old math major Colton Tooley. Tooley was seen running through the campus morning as classes started. He was wearing a dark business suit, carrying a rifle and shooting rounds into the air. Police told ABC News that the investigation had moved off campus to a "house associated with the shooting." Just before noon, a campus lockdown that had been in effect since around 8 a.m., was lifted, and police ended a search for a possible second suspect. "The armed suspect is dead. No other injuries have been reported," UT President Bill Powers wrote in a campus email. Tooley was found dead on the sixth floor of the library from apparently self inflicted wounds, police said. Police confirmed Tooley was carrying an AK-47, a military-grade combat rifle. Police said they had not yet determined a motive.
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