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) feverish response to the alleged "martyrdom" issue is also chronicled. "Columbine" begins four days before the massacre, at a school assembly hosted by Principal DeAngelis just before Prom weekend. Scenes from the massacre are graphically depicted in the early chapters, and later through flashbacks. Published by Twelve (Hachette Book Group) on April 6, 2009, "Columbine" debuted at number seven on the bestseller list for "The New York Times" in the United States. It peaked at number three, and spent eight weeks on the list. The book was very well received by critics, and by news media, which focused heavily on