This title examines an important historic event - the shootings at Columbine High School in Jefferson County, Colorado. Easy-to-read, compelling text explores the two gunmen, Eric Harris and Dylan Klebold, details of the shootings, the names of those injured and killed, the influence of the video game Doom and the movie Natural Born Killers on the gunmen, the men who helped the gunmen acquire their weapons, the Trench Coat Mafia, the memorial services for those killed, the return to school, a visit by President Bill Clinton and First Lady Hillary Rodham Clinton, graduation, and the effects of this event on society. Features include a table of contents, glossary, selected bibliography, Web links, source notes, and an index, plus a timeline and essential facts. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.