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 (book) Columbine (book) Columbine is a non-fiction book written by Dave Cullen and published by Twelve (Hachette Book Group) on April 6, 2009. It is an examination of the Columbine High School massacre, perpetrated by Eric Harris and Dylan Klebold on April 20, 1999. The book covers two major storylines: the killers' evolution leading up to the attack, and the survivors' struggles with the aftermath over the next decade. Chapters alternate between the two stories. Graphic depictions of parts of the attack are included, in addition to the actual names of friends and family (the only exception being the pseudonym "Harriet",