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Photo by: Derek Stout

A police officer patrols the University of Texas campus in Austin early Tuesday morning Sept. 28, 2010 after a gunman opened fire at the Perry-Castaneda Library. A gunman opened fire Tuesday inside a University of Texas campus library then fatally shot himself, and police are searching for a possible second suspect, university police said. The UT clock tower is seen in the background. (AP Photo/The Daily Texan, Derek Stout)

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