Who is Dylan Klebold from Rachel's Tears: The Spiritual Journey of Columbine Martyr Rachel Scott and what is their importance?

Dylan Klebold was one of the shooters at Columbine. He is described as being like most kids, only nicer. Every once in a while, however, he did something odd, foreshadowing trouble. An example of this would be the way Dylan would salute and say "Heil Hitler" while bowling.