Categories Articles Columbine Marks 20th Anniversary of Shooting With Community Service and a Ceremony Post author By crystalg Post date April 20, 2019 TIME Tags 20th, Anniversary, ceremony, Columbine, Community, Marks, service, Shooting ← Munchie Myth: Marijuana Users Less Likely To Be Overweight, Study Finds → Paypal and GoFundMe banned a militia group that detained migrants at the US border