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
She Said Yes: The Unlikely Martyrdom of Cassie Bernall She Said Yes: The Unlikely Martyrdom of Cassie Bernall She Said Yes: The Unlikely Martyrdom of Cassie Bernall is a memoir by Misty Bernall about the life of her daughter Cassie Bernall who was killed during the Columbine High School massacre on April 20, 1999. The book was published by Plough Publishing and released on September 1, 1999. The book spent five weeks on the New York Times Best Seller List, peaking at No. 8. The book was published a little over four months after the death of Cassie Bernall in the Columbine High School Massacre. The book details the