On April 20, 1999, Columbine High School in Littleton, Colorado, suffered a tragedy in which Lauren Townsend, John Tomlin, Daniel Rohrbough, Cassie Bernall, Rachel Scott, Corey Depooter, Kelly Fleming, Matt Kechter, Daniel Mauser, Isaiah Shoels, Kyle Velasquez, Steven Curnow, and Dave Sanders were remembered, alongside the appeal to value precious time and hug someone you love today.