Tuesday April 20, 1999. Just another day at  Columbine High School,in Littleton, Colorado. When something went terribly wrong. Two disgruntled students (Eric Harris and Dylan Klebold) engaged in the mass killing and shooting of 12 students and one teacher. There were also 24 injuries and multiple bombs set off. The Columbine Shooting became one of top three school massacres in the history of the American school system and a day that will live in infamy.