Twenty Years After Columbine | The New Yorker
Columbine High School shooting: 13 dead, dozens hurt in 1999 massacre
Columbine Never Sleeps | GQ
Haunted by Columbine | Retro Report Documentary | The New York Times - YouTube
Columbine High School shootings | Date, Shooters, History, & Facts | Britannica
Columbine effect - Wikipedia
US school shootings: Have drills gone too far? - BBC News
1 slain, 8 hurt in school shooting outside Denver - POLITICO
Educators 'physically and emotionally tired' as false school shooting calls surge | Education | denvergazette.com
Columbine's 15th Anniversary | Time
Columbine High School shooting: 13 dead, dozens hurt in 1999 massacre
US school shootings: Have drills gone too far? - BBC News
Nicholas Goldberg: Did the 23-year-old Columbine attack inspire last week's school shooting in Russia? - Los Angeles Times
Columbine High School shooting: 13 dead, dozens hurt in 1999 massacre
What Really Happened At Columbine? - CBS News
Columbine High School Shooting: Student Violence (American Disasters): Hasday, Judy L.: 9780766017825: Amazon.com: Books
The Columbine High-School Massacre (Violent Crimes Book 2) eBook : Murphy, Scott, Savelli, Fabien: Kindle Store - Amazon.com
The Columbine High-School Massacre (Violent Crimes): Murphy, Scott K: 9781523234387: Amazon.com: Books
Myths About Columbine Shooters' Motives Still Persist
Columbine Never Sleeps | GQ
Columbine High School student bullied for years through fake Safe2Tell reports - CBS Colorado
When Schools Simulate Mass Shootings - The Atlantic
Columbine shooting's myths: Eric Harris and Dylan Klebold weren't Trench Coat Mafia or outcasts - The Washington Post
