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
The Nobodies (song) after the Columbine High School massacre. Marilyn Manson explained the idea for the music video: The lyrics refer to Eric Harris and Dylan Klebold, the shooters of the April 20, 1999 Columbine High School massacre. Manson references the media coverage in the aftermath of the killings, singing "You should have seen the ratings that day." After the shootings, the media widely reported that listening to Manson's music drove the boys to kill, though in fact they didn't appear to be fans of the band. An interview with him about the Columbine shootings was featured in the 2002 Michael Moore documentary