Fifteen crosses are seen in Clement Park. There is one for each of the 15 people who died, including the two gunman in the Columbine High School massacre which happened on April 20, 1999.///A visitor inspects fifteen crosses in Clement Park in Columbine,
George Kochaniec, Jr., Fifteen crosses are seen in Clement Park. There is one for each of the 15 people who died, including the two gunman in the Columbine High School massacre which happened on April 20, 1999.///A visitor inspects fifteen crosses in Clement Park in Columbine, (08/09/2006), [437765880] . Denver Public Library Digital Collections, accessed 07/02/2026, https://digital.denverlibrary.org/nodes/view/916242