By Columbine Review Commission

The Commission conducted 15 meetings open to members of the public. The Commission received statements from an extensive list of State and local officials and private persons who had experience with or information concerning the event; Commission staff reviewed thousands of pages of official and unofficial documents, reports, and studies. Two recommendations related to crisis response actions. First, law enforcement policy and training should emphasize that the highest priority of law enforcement officers, after arriving at the scene of a crisis, is to stop any ongoing assault. Second, there should be an increased emphasis on training appropriate personnel in preparation for and responding to large-scale emergencies. Two recommendations pertained to improved communications for critical emergencies. First, law enforcement agencies should plan their communications systems to facilitate crisis communication with other agencies with whom they might reasonably be expected to interface in emergencies. Second, Colorado should continue to develop a single statewide digital trunked communications system. Other categories of recommendations pertained to advance planning for critical emergencies; interaction with media representatives; tasks of school resource officers; detection by school administrators of potential perpetrators of school-based violence and administrative countermeasures; medical treatment for attack victims; reuniting attack victims and their families; identification of victims' bodies and family access to bodies; and suicide prevention in the aftermath of traumatic incidents.

Denver, Colo. : Columbine Review Commission, 2001. 174p.

By United States Sentencing Commission

This report examines how firearms offenses were committed, including whether the offenses involved violence, and whether the offenders have a history of engaging in violent criminal behavior.

Washington, DC: USSC, 2022. 46p.

By The Federal Commission on School Safety

Communities across the country are responding to school violence with a number of measures, including assigned school resource officers (SRO). School administrations, law enforcement agencies, families, and community stakeholders are diligently working to protect children and education personnel from school attacks. The National Police Foundation (NPF), in collaboration with the COPS Office, created the Averted School Violence (ASV) database in 2015 as a platform for law enforcement, school staff, and mental health professionals to share information about ASV incidents and lessons learned with the goal of mitigating and ultimately preventing future injuries and fatalities in educational institutions. The database includes school incidents beginning with the Columbine High School attack (1999) and continuing to the present day. The NPF has partnered with stakeholder groups National Association of School Resource Officers (NASRO) and the International Association of Campus Law Enforcement Administrators (IACLEA) to conduct research and analysis on improving school safety. This report examines a dozen case studies of targeted violence incidents thwarted by the positive and often heroic actions of classmates, school administrators, SROs, and law enforcement agencies. It also includes recommendations and lessons learned from all cases in the ASV database. In addition, a companion publication entitled Targeted Violence Averted: College and University Case Studies presents information on post-secondary averted violence incidents and lessons learned to support student safety.

Washington, DC: Department of Education, Department of Health and Human Services, Department of Homeland Security and Department of Justice, 2018. 180p.

By Michael Rocque, Grant Duwe, Michael Siegel, James Alan Fox, Max Goder-Reiser, and Emma E. Fridel

In the past decade, mass shootings, particularly those that take place in public areas, have increasingly become part of the national conversation in the United States. Mass public shootings instill widespread fear, in part because of their seeming randomness and unpredictability. Yet when these incidents occur, which has been with somewhat greater frequency and lethality as of late, public calls for policy responses are immediate. In this policy brief, we review efforts to evaluate the effect of gun control measures on mass public shootings, including a discussion of our recently published study on the relationship between state gun laws and the incidence and severity of these shootings. The findings of this work point to gun permits and bans on large capacity magazines as having promise in reducing (a) mass public shooting rates and (b) mass public shooting victimization, respectively. Interestingly, however, most gun laws that we examined, including assault weapon bans, do not appear to be causally related to the rate of mass public shootings.

Albany, NY: Rockefeller Institute of Government, 2021. 20p.

Edited by Rajeev Ramchand, Jessica Saunders

This report, part of RAND's Gun Policy in America project, presents a collection of essays that synthesize the available scientific data on topics pertinent to firearm policy in the United States. In particular, the authors examine mass shootings, firearm and ammunition taxes, the effects of the 1996 National Firearms Agreement in Australia, whether mental illness is a risk factor for gun violence, and law enforcement approaches to reduce community gun violence.

Santa Monica, CA: RAND Corporation, 2021. 115p.

By Vivian S. Chu

As the Internet has become a significant venue for facilitating commercial transactions, concerns have arisen regarding the use of this medium to transfer firearms. This report discusses the sale of firearms and ammunition over the Internet, with a focus on the extent to which federal law regulates such activity. A review of the relevant factors indicates Internet-based firearm transactions are subject to the same regulatory scheme governing traditional firearm transactions. Over the years, this has raised concern about the possibility of increased violation of federal firearm laws, as well as challenges that law enforcement may face when attempting to investigate violations of these laws. A review of the relevant factors also indicates that the sale and transfer of ammunition are not as strictly regulated as firearms, and that these changes came into effect in 1986. Lastly, this report highlights recent legislative proposals, S. 3458 and H.R. 6241, companion measures introduced by Senator Frank Lautenberg and Representative Carolyn McCarthy in the 112th Congress that would affect online ammunition transactions.

Washington, DC: U.S. Library of Congress, Congressional Research Service, 2012. 11p.

By Joshua Horowitz and Casey Anderson.

When gun enthusiasts talk about constitutional liberties guaranteed by the Second Amendment, they are referring to freedom in a general sense, but they also have something more specific in mind---freedom from government oppression. They argue that the only way to keep federal authority in check is to arm individual citizens who can, if necessary, defend themselves from an aggressive government. In the past decade, this view of the proper relationship between government and individual rights and the insistence on a role for private violence in a democracy has been co-opted by the conservative movement. As a result, it has spread beyond extreme militia groups to influence state and national policy. In Guns, Democracy, and the Insurrectionist Idea, Joshua Horwitz and Casey Anderson set the record straight. They challenge the proposition that more guns equal more freedom and expose Insurrectionism as a true threat to freedom in the United States today.

Ann Arbor: University of Michigan Press, 2009. 287p.

By Ralph Larkin. 

On April 20, 1999, two Colorado teenagers went on a shooting rampage at Columbine High School. That day, Eric Harris and Dylan Klebold killed twelve fellow students and a teacher, as well as wounding twenty-four other people, before they killed themselves. Although there have been other books written about the tragedy, this is the first serious, impartial investigation into the cultural, environmental, and psychological causes of the massacre. Based on first-hand interviews and a thorough reading of the relevant literature, Ralph Larkin examines the numerous factors that led the two young men to plan and carry out their deed. Rather than simply looking at Columbine as a crucible for all school violence, Larkin places the tragedy in its proper context, and in doing so, examines its causes and meaning.

Philadelphia: Temple University Press, 2007. 265p.

By Steffen Hurka.

Politicization and Policy Change in Western Europe. While the causes of rampage violence have been analysed thoroughly in diverse academic disciplines, we hardly know anything about the factors that affect their consequences for public policy. This book addresses rampage shootings in Western Europe and their conditional impact on politicization and policy change in the area of gun control. The author sets out to unravel the factors that facilitate or impede the access of gun control to the political agenda in the wake of rampage shootings and analyses why some political debates lead to profound shifts of the policy status quo, while others peter out without any legislative reactions. In so doing, the book not only contributes to the theoretical literature on crisis-induced policy making, but also provides a wealth of case-study evidence on rampage shootings as empirical phenomena.

London; New York: Routledge, 2017. 201p.

By Michael R. Vernick, Jon S., Webster, Daniel W.. “The role of guns in violence, and what should be done, are subjects of intense debate in the United States and elsewhere. But certain facts are not debatable. More than 31,000 people died from gunshot wounds in the United States in 2010….Despite the huge daily impact of gun violence, most public discourse on gun policy is centered on mass shootings in public places. Such incidents are typically portrayed as random acts by severely mentally ill individuals which are impossible to predict or prevent.”

Bloomberg. Johns Hopkins Press (2013) 312p.