On April 20, 1999 two shooters by the name of Eric Harris and Dylan Klebold went into Columbine High School with sawed off shotguns assault rifles and Semi Automatic hand guns. The two killers just seemed like ordinary high school seniors, but then On April 20, 1999, the killers came in and according to the journals and videos they had made and left behind, they went into Columbine High School to take revenge on all the people who had been picking on them and abusing them. Since the killers were not at a stable state of mind, they believed the whole school should be punished for the things they had done to the two boys. This is the only possible explanation for why these killers would do such an awful thing. Not all questions can be answered and they never will be.