There is no one story about what happened on April 20, 1999 at Columbine High School. Twenty years later, 9NEWS is revisiting some of the people and places that changed forever after the tragedy that defined the community.

Special section: https://9news.com/columbine

Columbine: 20 Years Later (full playlist): https://bit.ly/2GsSgmO
More local videos here: https://bit.ly/2Pa0d1l
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9NEWS (KUSA) is located in Denver, Colorado.