For a complete bibiliography, see the back of the book. It includes approximately 250 entries. We pared that in half here, with links for most (where available).

I am frequently asked what one book to read next to learn more about the killers. I would definitely start with Dr. Robert Hare's classic psychopathy book, Without Conscience. He intended it for lay readers, and it works. He's got a talent for writing and it's an easy read, but not dumbed down.

After that, you have an extraordinary number of options. Here are my suggestions, grouped by category. Enjoy your exploration:

Government Reports on Columbine & School Shooters

(Information on obtaining evidence reports can be found at the Columbine Guide.)

Federal Bureau of Investigation. U.S. Department of Justice. Critical Incidence Response Group. National Center for the Analysis of Violent Crime. Mary Ellen O'Toole. The School Shooter: A Threat Assessment Perspective.

Jefferson County Sheriff's Office. Sheriff's Office Final Report on the Columbine High School Shootings. CD, May 15, 2000.

U.S. Secret Service and U.S. Department of Education. The Final Report and Findings of the Safe School Initiative: Implications for the Prevention of School Attacks in the United States. May 2002.

 

The Killers: Evidence Released
(Information on obtaining evidence reports can be found at the Columbine Guide.)

Colorado, Department of Law, Office of the Attorney General. Columbine-Related Grand Jury Report: Supplemental Attorney General Investigative Report. Released September 16, 2004.

Colorado, Department of Law, Office of the Attorney General. Grand Jury Report: Investigation of Missing Guerra Files. September 16, 2004.

Columbine High School. Cafeteria Surveillance Tapes. DVD, Released by Jefferson County June 7, 2000.

Harris, Eric. Harris Web Site: 1997 Police Report and Web Pages. CD, Released by Jefferson County October 30, 2003.

Harris, Eric. Journal, school essays, yearbook inscription, IMs, schedules and hundreds of other pages of accumulated writing. Included in 936 Pages of Documents Seized from Harris and Klebold Residences/Vehicles. CD, Released by Jefferson County July 6, 2006.

Harris, Eric and Dylan Klebold. Klebold/Harris Footage. The video contains miscellaneous footage retrieved from school or provided by citizens. VHS tape, Released by Jefferson County February 26, 2004.

———. "Rampart Range" Video. (The video contains graphic language.) VHS tape, Released by Jefferson County October 21, 2003.

Jefferson County Coroner's Office, Autopsy summaries, February 6, 2001.

Jefferson County Coroner's Office, Klebold autopsy reports, February 23, 2001.

———. Evidence Books. CD, May 11, 2001.

 

The Killers: Profiles & Childhood History

Bartels, Lynn and Carla Crowder. "Fatal Friendship: How Two Suburban Boys Traded Baseball and Bowling for Murder and Madness." Rocky Mountain News, August 22, 1999.

Brooks, David. "Columbine: Parents of a Killer." The New York Times, May 15, 2004.

Prendergast, Alan. "I'm Full of Hate and I Love It"." Westword, December 6, 2001.

Simpson, Kevin, Patricia Callahan, and Peggy Lowe. "Life and Death of a Follower." The Denver Post, May 2, 1999.

Wilgoren, Jodi and Dirk Johnson. "The Suspects: Sketch of Killers; Contradictions and Confusion." The New York Times, Friday April 23, 1999.

 

Psychopathy

Babiak, Paul, and Robert D. Hare. Snakes in Suits: When Psychopaths Go to Work. New York: HarperCollins, 2007.

Cleckley, Hervey. The Mask of Sanity: An Attempt to Clarify Some Issues About the So-Called Psychopathic Personality. 5th ed., 1988.

Hare, Robert D. Hare Psychopathy Checklist-Revised (PCL-R), 2nd ed. Toronto: Multi-Health Systems, 2003.

———. Without Conscience. Guilford Press, 1999.

———. Robert Hare's Web Page Devoted to the Study of Psychopathy.

Kiehl, Kent A., Alan T. Bates, Kristin R. Laurens. Robert D. Hare, and Peter F. Liddle. "Brain Potentials Implicate Temporal Lobe Abnormalities in Criminal Psychopaths." Journal of Abnormal Psychology 115, no. 3 (2006): 443– 453.

Millon , Theodore, and Roger D. Davis. Psychopathy: Antisocial, Criminal, and Violent Behavior. New York: Guilford Press, 1998.

 

Juvenile Psychopathy

Forth, Adelle, PhD, David Kosson, PhD, & Robert D. Hare, PhD. Psychopathy Checklist: Youth Version (PCL:YV). Toronto: Multi-Health Systems. 2003.

Glenn, Andrea L., Adrian Raine, Peter H. Venables, and Sarnoff A. Mednick. "Early Temperamental and Psychophysiological Precursors of Adult Psychopathic Personality." Journal of Abnormal Psychology 116, no. 3 (2007): 508-518.

Loeber, Rolf, David P. Farrington, Magda Stouthamer-Loeber, Terrie E. Moffitt, Avshalom Caspi and Don Lynam. "Male Mental Health Problems, Psychopathy, and Personality Traits: Key Findings from the First 14 Years of the Pittsburgh Youth Study." Clinical Child and Family Psychology Review 4, no. 4 (December 2001): 273-297.

 

Psychopathy Treatment

Caldwell, Michael F., David J. McCormick, Deborah Umstead and Gregory J. Van Rybroek. "Evidence of Treatment Progress and Therapeutic Outcomes Among Adolescents with Psychopathic Features." Criminal Justice and Behavior 34 (2007): 573-587.

Wong, Stephen C. P., PhD and Robert D. Hare, PhD. Guidelines for a Psychopathy Treatment Program. Toronto: Multi-Health Systems, 2006.

 

Other Mental Health

Anderson, Scott, "The Urge to End It." New York Times Magazine. July 6, 2008.

Ekman, Paul. Telling Lies: Clues to Deceit in the Marketplace, Politics, and Marriage. New York: W. W. Norton, 2nd ed., 2001.

Ochberg, Frank. "PTSD 101." DART Center for Journalism and Trauma.

 

Survivors: Memoirs & Interview Transcripts

Bernall, Misty. She Said Yes: The Unlikely Martyrdom of Cassie Bernall. Farmington, PA: The Plough Publishing House, 1999.

Ireland, Patrick. "The Boy in the Window." Interview by Diane Sawyer. 20/20, ABC, September 29, 1999.

Saltzman, Marilyn and Linda Lou Sanders. Dave Sanders: Columbine Teacher, Coach, Hero. Philadelphia: Xlibris Corporation, 2004.

 

Survivors: News Accounts

Bartels, Lynn. "Mom Had Been Hospitalized for Depression: Carol Hochhalter Had Struggled with Depression for Three Years." Rocky Mountain News, October 26, 1999.

———. "A Story of Healing and Hope: Faith and Friends Helped Paralyzed Student Overcome a 'Very Dark Place'." Rocky Mountain News, April 20, 2004.

Paterniti, Michael. "Columbine Never Sleeps." GQ, April 2004, 206-220.

 

Lawsuits: Court Filings & Case Summaries

Grenier, Peter C. "Civil Litigation Arising out of the Columbine High School Massacre." The National Crime Victim Bar Association. Continuing Legal Education.

 

Christians
The Barna Group. "Five Years Later: 9/11 Attacks Show No Lasting Influence on Americans' Faith." The Barna Update. August 28, 2006.

Bottum, J. "A Martyr Is Born." The Weekly Standard, May 10, 1999.

Luzadder, Dan and Katie Kerwin McCrimmon. "Accounts differ on question to Bernall: Columbine shooting victim may not have been asked whether she believed in God." Rocky Mountain News, September 24, 1999.

Oudemolen, Reverend Bill. "Responding to 'Every Parent's Worst Nightmare." Sermon. Foothills Bible Church, Littleton, CO, May 9, 1999.

Rosin, Hanna. "Columbine Miracle: A Matter of Belief; The Last Words of Littleton Victim Cassie Bernall Test a Survivor's Faith—and Charity." The Washington Post, October 14, 1999.

Zoba, Wendy Murray, Day of Reckoning: Columbine and the Search for America's Soul. Grand Rapids, MI: Brazos Press, 2001.

 

Media Coverage of the Attack

Crowder, Carla and Scott Stocker. "Teen-agers Battle to Help Wounded Science Teacher; Students Try to Stem Blood from Gravely Injured Man." Rocky Mountain News, April 21, 1999.

 

Hostages & Terrorists

Fuselier, G. Dwayne. "A Practical Overview of Hostage Negotiations (Part 1)." FBI Law Enforcement Bulletin, June, 1981, 50:6, pp. 2-6.

Juergensmeyer, Mark. Terror in the Mind of God: The Global Rise of Religious Violence. Comparative Studies in Religion and Society, vol. l3, University of California Press, first paperback ed., 2001.

Noesner, Gary W. "Negotiation Concepts for Commanders." FBI Law Enforcement Bulletin 68, no 1 (January 1999):6-14.

 

Police Ethics & Response Protocols

Delattre, Edwin J. Character and Cops: Ethics in Policing. 5th ed. Washington, DC: AEI Press, 2006.

 

Columbine Police Response, Investigation & Cover-Up

Luzadder, Dan and Kevin Vaughan. "Inside the Columbine Investigation Series, Part l." Rocky Mountain News, December 12, 1999.

———. "Inside the Columbine Investigation Series, Part 2: Amassing the Facts." Rocky Mountain News, December 13, 1999.

———. "Inside the Columbine Investigation Series, Part 3: Biggest Question of All." Rocky Mountain News, December 14, 1999

Prendergast, Alan. "Chronology of a Big Fat Lie." Westword, April 19, 2001.

 

Other School Shootings

"Mass Shootings at Virginia Tech April 16, 2007: Report of the Review Panel." presented to Gov. Tim Kaine, Commonwealth of Virginia, August, 2007.

 

Gun Control

O'Driscoll, Patrick and Tom Kenworthy. "Grieving Father Turns Gun-control Activist." USA Today, April 19, 2000.

Tapper, Jake, "Coming out Shooting: In the wake of the Littleton massacre, the NRA holds its convention in Denver, less than 20 miles away from Columbine High School." Salon, May 2, 1999.

 

Miscellaneous

Jefferson County School District Profile of Columbine High School.

Okrent, Daniel. The Public Editor: "Setting the Record Straight (but Who Can Find the Record?)" The New York Times, March 14, 2004.

Shepard, Cyn. A Columbine Site.