It's been 24 years since we lost 12 students and one teacher at Columbine High School. Twenty people were also injured during that mass shooting on April 20, 1999.
Every year, the school is closed, so that students, staff and parents can do a Day Of Service in the community.
This picture was taken at the Columbine Memorial at Clement Park in Littleton, a beautiful place to honor those who died, were injured, and survived this terrible tragedy.