History: 20 years ago, the infamous Columbine High School massacre occurred on April 20, 1999. Here, four young women headed to a library near Columbine High School where students and staff members were evacuated, after two gunmen opened fire inside a school in the suburb of Littleton, Colorado [1200x1040].

https://i.redd.it/m859fmrnpls21.jpg via /r/HistoryPorn https://www.reddit.com/r/HistoryPorn/comments/bdskb9/20_years_ago_the_infamous_columbine_high_school/?utm_source=ifttt