Students from Arapahoe High School evacuate their building in Centennial, Colorado December 13, 2013 in this still image from video Courtesy KUSA, Channel 9 during a shooting incident in which at ... more 
Students from Arapahoe High School evacuate their building in Centennial, Colorado December 13, 2013 in this still image from video Courtesy KUSA, Channel 9 during a shooting incident in which at least two students were injured. Police reported the gunman took his own life. REUTERS/Courtesy KUSA, Channel 9 less 
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Reuters | Photo By POOL / Reuters
Sun, Dec 15, 2013 3:13 PM EST