Students run from Columbine High School run under
Mark Leffingwell / AFP - Getty Images

TODAY   |  May 21, 2013

Tragedy and heroism at Columbine

April 19: Ten years after Eric Harris and Dylan Klebold killed 13 and injured 23 at a suburban Denver school, NBC’s Natalie Morales examines some of the heartbreaking stories of tragedy, heroism and survival.

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