From right, Jared Jensen, his girlfriend Rachel Anderson, and her brother David Anderson attend a candlelight vigil April 20, 2004, in Littleton on the five year anniversary of the Columbine High School shooting. Jared Jensen was a student at the time of the shootings and survived and graduated in 2002 from Columbine High School. (Photo by Larry W. Smith/Getty Images)The massacre at Columbine High School on April 20, 1999, became the largest sch…