Karl Gehring/The Denver Post
  • Colorado School Shooting

    Students comfort each other at Arapahoe High School in Centennial, Colo., Dec. 13, 2013. Arapahoe County Sheriff Grayson Robinson said a student shot two others at the school before apparently killing himself.
    Karl Gehring/The Denver Post
  • Colorado School Shooting

    A woman screams as she arrives at a church where students from nearby Arapahoe High School were evacuated to after a shooting on the Centennial, Colo., campus, Dec. 13, 2013.
    Brennan Linsley/AP Photo
  • Colorado School Shooting

    Sheriff's deputies are at Arapahoe High School in Centennial, Colo., Dec. 13, 2013, where a student shot at least one other student before he apparently killed himself, authorities said.
    R.J. Sangosti/The Denver Post via Getty Images
  • Colorado School Shooting

    Parents waited to be reunited with their children outside Arapahoe High School, in Centennial, Colo., Dec. 13, 2013.
    Karl Gehring/The Denver Post
  • Colorado School Shooting

    Students comfort each other at Arapahoe High School in Centennial, Colo., Dec. 13, 2013, where a student shot at least one other student before he apparently killed himself, authorities said.
    R.J. Sangosti/The Denver Post via Getty Images
  • Colorado School Shooting

    Sheriff's deputies are at Arapahoe High School in Centennial, Colo., Dec. 13, 2013, where a student shot at least one other student before he apparently killed himself, authorities said.
    R.J. Sangosti/The Denver Post via Getty Images
  • Colorado School Shooting

    People gather outdoors as police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    Ryan Parker/Denver Post
  • Colorado School Shooting

    Parents wait for word about their children outside of Arapahoe High School after a shooter was reported on campus in Centennial, Colo., Dec. 13, 2013.
    John Leyba/The Denver Post
  • Colorado School Shooting

    Police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    KDVR/AP Photo
  • Colorado School Shooting

    Police search students gathered outside of Arapahoe High School as authorities respond to reports of a shooting at the school in Centennial, Colo. Dec. 13, 2013.
    KDVR/AP Photo
  • Colorado School Shooting

    People gather outdoors as police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    Ryan Parker/Denver Post
  • Colorado School Shooting

    Students gather outdoors as police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    Ryan Parker/Denver Post
  • Colorado School Shooting

    Crime-scene tape blocks off an area outside Arapahoe High School in Centennial, Colo., where police responded to reports of a shooting, Dec. 13, 2013.
    Ryan Parker/Denver Post
  • Colorado School Shooting

    Police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    Ryan Parker/Denver Post
  • Colorado School Shooting

    Police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    KDVR/AP Photo
  • Colorado School Shooting

    Police respond to reports of a shooting at Arapahoe High School in Centennial, Colo., Dec. 13, 2013.
    ABC News
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