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 killing him by breaking his neck. Both shooters moved south and fired randomly under another table, critically injuring two 17-year-olds, Jennifer Doyle and Austin Eubanks, and fatally wounding 17-year-old Corey DePooter. DePooter was later credited with having kept his friends calm during the ordeal. He was the last to die in the massacre, at 11:35 a.m. There were no further victims. They had killed 10 people in the library and wounded 12. Of the 56 library hostages, 34 remained unharmed. Investigators would later find that the shooters had enough ammunition to have killed them all. Throughout the library massacre, the