Columbine High School massacre Potential Students") program. He found the transition to Ken Caryl Middle School difficult. Unlike the white caps of the jocks, Harris and Klebold wore black baseball caps. As was typical in the 1990s, they wore them backwards. Harris wore a KMFDM cap, and apparently did not wear it during the massacre. Klebold's cap had a Colorado Avalanche logo on the front and a Boston Red Sox logo sewn onto the back. Following the Columbine shooting, schools across the United States instituted new security measures such as see-through backpacks, metal detectors, school uniforms, and security guards. Some schools implemented school door
Columbine High School massacre "infinite sadness." Klebold had repeatedly documented his desires to commit suicide, and his final remark in the Basement Tapes, shortly before the attack, is a resigned statement made as he glances away from the camera: "Just know I'm going to a better place. I didn't like life too much." According to this theory, used by Dave Cullen for his 2009 book "Columbine," Harris had been the mastermind, having a messianic-level superiority complex, and hoping to demonstrate his superiority to the world; Klebold was a follower who primarily participated in the massacre as a means to simply end his life. However,