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 with a shooting in Jokela in Tuusula, Finland. He wore a shirt saying "Humanity is Overrated". The perpetrator of the Dawson College shooting wrote a note praising Harris and Klebold. The Tumblr fandom gained widespread media attention in February 2015 after three of its members conspired to commit a mass shooting at a Halifax mall on Valentine's Day. In 2017, two 15-year-old school boys from Northallerton, UK were charged with conspiracy to murder after becoming infatuated with the crime and "hero-worshipping" Harris and Klebold. Ralph Larkin wrote the Columbine massacre established a script for school shootings. Larkin examined twelve major