HIGHLANDS RANCH, May 8: Two high school students shot and killed a classmate and injured eight others at a charter school in a Colorado community that marked the 20th anniversary of one of the nation’s worst school shootings just weeks ago.

DENVER, April 18: An 18-year-old Florida woman infatuated with the Columbine massacre was found dead of an apparent self-inflicted gunshot wound in Colorado on Wednesday after she touched off an extensive manhunt by making a “pilgrimage” to the state days before the 20th anniversary of the 1999 school shooting.