25 years after the Columbine High School shooting, trauma lingers - Axios
- 25 years after the Columbine High School shooting, trauma lingers Axios
- Columbine 25 years later: We remember the 13 lives lost FOX 31 Denver
- Biden marks 25th anniversary of Columbine shooting Yahoo! Voices
- Nearly 500 People Have Been Killed in School Shootings Since Columbine Newsweek
- 25 years later, family, friends of Columbine victims ask us to never forget 9News.com KUSA