• Gilmartin, Kevin M. “The Lethal Triad: Understanding the Nature of Isolated Extremist Groups.”
• Juergensmeyer, Mark.
• Noesner, Gary W. “Negotiation Concepts for Commanders.”
• Reich, Walter, and Walter Laqueur.
• Brown, Jennifer, and Kevin Simpson. “Momentum for School Safety at Standstill.”
• Delattre, Edwin J.
• Fuselier, G. Dwayne, Clinton R. Van Zandt, and Frederick J. Lanceley. “Hostage/ Barricade Incidents: High-Risk Factors and the Action Criteria.”
• Garrett, Ronnie. “Marching to the Sound of Gunshots.”
• Khadaroo, Stacy Teicher. “A Year After Virginia Tech, Sharper Focus on Troubled Students: Many Campuses Have New Practices.”
• Lloyd, Jillian. “Change in Tactics: Police Trade Talk for Rapid Response.”
• Able, Charley. “Police Want Columbine Video Copier Found and Prosecuted.”
• “America’s Police Suppress Columbine Killers’ Videos.”
• “Cop Cleared in Columbine Death.” CBS News, April 19, 2002.
• Kenworthy, Tom, and Roberto Suro. “Nine Days After Rampage, Police Still Under Fire.”
• Lusetich, Robert. “Anger Grows at Two-Hour Police Delay.”
• Luzadder, Dan, and Kevin Vaughan. “Inside the Columbine Investigation Series, Part l.”
• —. “Inside the Columbine Investigation Series, Part 2: Amassing the Facts.”
• —. “Inside the Columbine Investigation Series, Part 3: Biggest Question of All.”
• McPhee, Mike. “Sheriff’s Former No. 2 Man Denies Coverup.”
• McPhee, Mike, and Kieran Nicholson. “Deputy in Columbine Case Fired Sheriff: Taylor Admits Lying to Families; Rohrbough Kin Calls Confession a Ruse.”
• Prendergast, Alan. “Chronology of a Big Fat Lie.”
• —. “In Search of Lost Time.”
• —. “The Plot Sickens.”
• —. “Stonewalled: The Story They Don’t Want to Tell.”
• —. “There Ought to Be a Law.”
• Vaughan, Kevin. “Police Dispute Charges They Were Too Slow.”
• The Brady Campaign. “Major U. S. School Shootings.” http://www.bradycampaign.org/xshare/pdf/school-shootings.pdf.
• Egan, Timothy. “Where Rampages Begin: A Special Report; From Adolescent Angst to Shooting Up Schools.”
• Glaberson, William. “Word for Word: A Killer’s Schoolmates; Guns, Mayhem and Grief Can Flourish When Good Friends Do Nothing.”
• “Gunman Kills 2, Wounds at Least 13 at School near San Diego.” Associated Press, March 5, 2001.
• “Mass Shootings at Virginia Tech, April 16, 2007: Report of the Review Panel.” Presented to Governor Tim Kaine, Commonwealth of Virginia, August 2007.
• Morse, Russell, Charles Jones, and Hazel Tesoro. “Misfits Who Don’t Kill: Outcasts Who Grew Up Without Resorting to Violence Talk about What Kept Them from a Littleton-style Massacre.”
• Paulson, Amanda, and Ron Scherer. “How Safe Are College Campuses?”
• Schiraldi, Vincent. “Hyping School Violence.”
• Abrams, Jim. “House Tempers Background Checks for Guns.” Associated Press, Washington, June 14, 2007.