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Mass shooting

Incident involving multiple victims of gun violence and typically where some victims are killed

Top 3 Mass shooting related articles

A mass shooting is an incident involving multiple victims of gun violence. There is no widely accepted definition of the term mass shooting. The United States' FBI follows the Investigative Assistance for Violent Crimes Act of 2012 definition for active shooter incidents and mass killings (defined by the law as three or more people) in public places. Based on this, it is generally agreed that a mass shooting is whenever three or more people are shot (injured or killed), not including the shooters.[1]

Different media outlets and research groups use different definitions for the term "mass shooting" For example, crime violence research group Gun Violence Archive defines a "mass shooting" as "four or more shot (injured or killed) in a single incident, at the same general time and location, not including the shooter," differentiating between mass shooting and mass murder.[2]

The United StatesCongressional Research Service acknowledges that there is not a broadly accepted definition and defines a "public mass shooting"[3] as an event where someone selects four or more people and shoots them with firearms in an indiscriminate manner, echoing the FBI's definition of the term "mass murder", but adding the indiscriminate factor.[4]

Mass shooting Intro articles: 3

Definitions

There are a variety of definitions of mass shooting:[5][6]

  • Under U.S. federal law, the Attorney General – on a request from a state – may assist in investigating “mass killings,” rather than mass shootings. The term was originally defined as the murder of four or more people with no cooling-off period[7][6] but redefined by Congress in 2013 as being murder of three or more people.[8]
  • In “Behind the Bloodshed”, a report by USA Today, a mass killing is defined as: any incident in which four or more were killed, including familial killings.[9]
  • A crowdsourced data site cited by CNN, MSNBC, The New York Times, The Washington Post, The Economist, the BBC, etc., Mass Shooting Tracker, defines a mass shooting as any incident in which four or more people are shot, whether injured or killed.[10][11]
  • According to the Investigative Assistance for Violent Crimes Act of 2012, signed into law in January 2013, a mass killing is defined as a killing with at least three deaths, excluding the perpetrator.[12][13]
  • An unofficial definition of a mass shooting is an event involving the shooting (not necessarily resulting in death) of five or more people (sometimes four)[14] with no cooling-off period.[10][14][15]
  • In Australia, a 2006 paper defined a mass shooting as one in which five or more "firearm‐related homicides are committed by one or two perpetrators in proximate events in a civilian setting, not counting any perpetrators."[16]
  • Crime violence research group Gun Violence Archive, whose research is used by all major American media outlets, defines mass shooting as “FOUR or more shot and/or killed in a single event [incident], at the same general time and location, not including the shooter,” differentiating between mass shooting and mass murder and not counting shooters as victims.[17]
  • Though there are several different definitions of a mass shooting, there are also certain inclusions and exclusions. University of Pennsylvania says no matter how many people are killed, if a shooting occurs by a foreign terrorist that is not included. Another exclusion is if 10 people are shot but only 2 die. Also if 5 people are run over by a car that does not count because no firearm was used. Some inclusions are multiple deaths caused by an armed robbery. Deaths as a result of gang wars are also sometimes included. [18]

The lack of a single definition can lead to alarmism in the news media, with some reports conflating categories of different crimes.[19]

An act of mass shooting is typically defined as terrorist when it “appears to have been intended” to intimidate or to coerce people;[20] although a mass shooting is not, in itself, an act of terrorism. A U.S. Congressional Research Service report explicitly excluded from its definition of public mass shootings those in which the violence is a means to an end, for example where the gunmen “pursue criminal profit or kill in the name of terrorist ideologies.”[3]

Mass shooting Definitions articles: 9

By continent and region

Africa

Mass shootings have occurred on the African continent, including the 1927 shooting in South Africa perpetrated by Stephanus Swart, the 2016 Grand Bassam attack in Côte d’Ivoire/Ivory Coast, and the 1994 Kampala wedding massacre in Kampala, Uganda. Whilst incidents of mass violence resulting from terrorism and ethnic conflict have occurred on the continent, “mass shootings” as generally understood are rare in Africa.

Egypt

Various shootings include both the 1997 Luxor massacre and the 2013 Meet al-Attar shooting in Egypt.

Kenya

On 2 April 2015, armed terrorists stormed a public university in the North Eastern part of the country and killed 148 people.

Asia

Several mass shootings have occurred in Asia, including the 1878 Hyderabad shooting and 1983 Pashupatinath Temple shooting in India, the 1938 Tsuyama massacre in Japan, the 1948 Babrra massacre in Pakistan, the 1993 Chongqing shooting and the 1994 Tian Mingjian incident in China, as well as the 2001 Nepalese royal massacre.

India

One of the earliest documented cases of a mass shooting in world history was the 1878 Hyderabad shooting, in which 6 were killed and a further 4 were injured by a sepoy in the British Indian Army in Hyderabad, Sindh, British Raj.

Republic of Korea

Mass shootings are extremely rare in Korea. The only mass shooting in South Korea was committed by Woo Bum-kon, leaving 56 dead. For many years, it was the deadliest mass shooting in modern history, until the 2011 Norway attacks surpassed it.

Japan

Japan has as few as two gun-related homicides per year. These numbers include all homicides in the country, not just mass shootings.[21] The only mass shooting in Japanese history was the Tsuyama massacre.

Israel

There have been many mass shootings in Israel, including the 1972 Lod Airport Massacre, which killed 26 and injured 80, the 2002 Bat Mitzvah massacre in Hadera, the 2014 Jerusalem synagogue attack in Jerusalem and the June 2016 Tel Aviv shooting at the popular Sarona centre complex in Tel Aviv.

There have been two mass shootings by Jews in Israel. Ami Popper was convicted of murdering seven Palestinian men in a mass shooting carried out in 1990. In 1994 Baruch Goldstein murdered 29 Muslims worshipping and injuring a further 125 in Hebron. Also known as the Cave of the Patriarchs massacre.

Thailand

Europe

There have been many mass shootings in Europe as well.[22] Recent examples including the 1987 Hungerford massacre; the 1996 Dunblane massacre and the 2010 Cumbria shootings in the United Kingdom; the 1990 Puerto Hurraco massacre in Spain; the 2001 Zug massacre in Switzerland; the 2002 Erfurt school massacre, the 2009 Winnenden school shooting, the 2011 Frankfurt Airport shooting, the 2016 Munich shooting, and the 2020 Hanau shootings in Germany; the 2007 Jokela school shooting and the 2008 Kauhajoki school shooting in Finland; the 2010 Bratislava shooting in Slovakia; the 2011 Alphen aan den Rijn shopping mall shooting in The Netherlands; the 2012 Toulouse and Montauban shootings, the January 2015 Île-de-France attacks and the November 2015 Paris attacks in France; and the 2018 Macerata shooting in Italy. The deadliest mass shooting by a lone individual in modern history occurred in Europe with the 2011 Norway attacks in Norway, in which 77 people died. Of them 67 died of gunshot wounds. 8 other victims were killed by a bomb and 2 indirectly. [22]

Soviet Union/Russia

Notable mass shootings that occurred in the Russian Empire, Soviet Union (Russian Soviet Federative Socialist Republic) and Russia include the Pogroms in the Russian Empire, 1992 Tatarstan shooting in Tatarstan, the 2002 Yaroslavsky shooting in Yaroslavsky, the 2002 Moscow theater hostage crisis, the 2012 Moscow shooting and the 2014 Moscow school shooting in Moscow, the 2004 Beslan school siege in Beslan and the 2013 Belgorod shooting in Belgorod.

North America

Canada

Notable mass shootings in Canada include the 1989 École Polytechnique massacre (which led to stronger gun control in Canada), the 1992 Concordia University massacre, the 2006 Dawson College shooting in Montreal, the 2012 Danzig Street shooting, the 2014 Edmonton killings in Edmonton, the 2017 Quebec City mosque shooting in Quebec City, the 2018 Toronto shooting, and the 2020 Nova Scotia attacks. Following the attacks in Nova Scotia, which were the deadliest rampage in Canada, Prime Minister Justin Trudeau banned the use, sale, purchase, and import of AR-15s – the military-style semiautomatic rifle used in the shooting and many other shootings in the US.[23]

Mexico

Notable mass shootings in Mexico include the 2010 Chihuahua shootings in Chihuahua.

United States

Total U.S. deaths by year in spree shootings: 1982 to current (ongoing).[24]

The United States has had the most mass shootings of any country.[25][26][27][28][29] In one 2017 study published in Time magazine by criminologist Adam Lankford, it was estimated that 31% of public mass shootings occur in the US, although it has only 5% of the world's population.[30] The study concludes that “The United States and other nations with high firearm ownership rates may be particularly susceptible to future public mass shootings, even if they are relatively peaceful or mentally healthy according to other national indicators.”[31]

Criminologist Gary Kleck criticized Lankford's findings, stating the study merely shows a proportional relationship, but fails to prove that gun ownership causes mass shootings. Kleck claims that Lankford has been unwilling to share a list of his cases, provide a list of the number of attacks per country, or even list his sources so that others can check his numbers. [32] Backlash from economist and gun rights advocate John Lott also raised objections to Lankford's methodology and refusal to share his data. He speculated that Lankford had overlooked a significant number of mass shootings outside the US, which if accounted for would adjust the nation's share closer to 2.88%; slightly below the world average. [33][34] Adam Lankford has since followed up on his research, clarifying that although the United States is not significantly more likely than most other countries to have mass shootings that are committed by more than one person, such as the university massacre in Kenya, the United States from 1998-2012 did in fact have more than six times its global share of public mass shooters who attacked alone.[35] Using the data from Lott and Moody's 2019 study of mass shootings,[36] Lankford explains that "41 of all 138 public mass shootings by single perpetrators worldwide were committed in the United States. That represents 29.7%. Because America had in those years approximately 4.5% of the world's population (according to Lott and Moody's calculations), this indicates that based on their own data, the United States had more than six times its global share of public mass shooters who attacked alone (29.7/4.5 = 6.6).[37]

Mass shootings have also been observed to be followed by an increase in the purchase of weapons, but does not seem to create an increased feeling of needing guns in either gun owners or non-owners. [38]

South America

Argentina

Notable mass shootings in Argentina include the 2004 Carmen de Patagones school shooting in Carmen de Patagones.

Brazil

Notable mass shootings in Brazil include the 2011 Realengo massacre in Rio de Janeiro and the Suzano school shooting in Suzano.

Oceania

Australia

Notable mass shootings in Australia include the 1987 Hoddle Street massacre in Hoddle Street, Clifton Hill, Melbourne and the 1996 Port Arthur Massacre in Port Arthur, Tasmania. There were 13 mass shootings with five or more deaths between 1979 and 1996, and three mass shootings involving four or more deaths have occurred since the introduction of stricter gun control laws following the Port Arthur incident.[39][40]

New Zealand

Notable mass shootings in New Zealand include the 1990 Aramoana massacre[41] in which 14 people were killed (including the perpetrator) in Aramoana and the 2019 Christchurch mosque shootings in Christchurch, which resulted in 51 deaths[42] and is the largest mass shooting in New Zealand history and is also amongst one of the deadliest mass shootings in the world.[43]

Mass shooting By continent and region articles: 133

Victims and survivors

After mass shootings, some survivors have written about their experiences and their experiences have been covered by journalists. A survivor of the Knoxville Unitarian Universalist church shooting wrote about his reaction to other mass shooting incidents.[44] The father of a victim in a mass shooting at a movie theater in Aurora, Colorado, wrote about witnessing other mass shootings after the loss of his son.[45] The survivors of the 2011 Norway attacks recounted their experience to GQ magazine.[46] In addition, one paper studied Swedish police officers’ reactions to a mass shooting.[47]

Survivors of mass shootings can suffer from Post-traumatic stress disorder.[48][49]

Mass shooting Victims and survivors articles: 5

Perpetrators

Mass shooters outside the United States include: Anders Behring Breivik, Robert Steinhauser, Tim Kretschmer, William Unek, Marc Lépine, Valery Fabrikant, Alexandre Bissonnette, Pekka-Eric Auvinen, Matti Juhani Saari, Genildo Ferreira de França, Friedrich Leibacher, Ľubomír Harman, Tristan van der Vlis, Richard Komakech, Omar Abdul Razeq Abdullah Rifai, Farda Gadirov, Martin Bryant, Benjamin Glenn Hoffman, Michael Robert Ryan, Derrick Bird, Thomas Hamilton, Ljubiša Bogdanović, Woo Bum-kon, Heinz Schmidt, Stanisław Ławrynowicz and Janusz Obrąpalski, Zdeněk Kovář, Ctirad Vitásek, Kimveer Gill, Dipendra Bir Bikram Shah Dev, Jessie Javier Carlos, Éric Borel, Christian Dornier, Mohammed Merah, David Ali Sonboly, Vladislav Roslyakov, Guilherme Taucci Monteiro and Luiz Henrique de Castro, Brenton Tarrant, Stephan Balliet, José Ángel Ramos, Jakrapanth Thomma, Tobias Rathjen, Gabriel Wortman and Frédérik Limol.

Perpetrators of mass shootings in the U.S. include: Eric Harris and Dylan Klebold, Edward Charles Allaway, James Edward Pough, Carl Robert Brown, Omar Mateen, Robert A. Hawkins, James Oliver Huberty, Nathan Dunlap, George Hennard, Dylann Roof, Adam Lanza, Nidal Malik Hasan, Charles Whitman, Jeff Weise, Gang Lu, Patrick Sherrill, Eric Houston, Barry Loukaitis, T.J. Lane, Charles Andrew Williams, Laurie Dann, Christopher Harper-Mercer, Gian Luigi Ferri, Mark Essex, Scott Evans Dekraai, Steven Kazmierczak, Jennifer San Marco, James Eagan Holmes, Jiverly Wong, Mark Barton, Rodrick Shonte Dantzler, Jared Lee Loughner, Seung-Hui Cho, Elliot Rodger, Charles Carl Roberts IV, Rizwan Farook and Tashfeen Malik, Robert Lewis Dear, Mitchell Johnson and Andrew Golden, Aaron Alexis, Wade Michael Page, Patrick Edward Purdy, Gavin Eugene Long, Micah Xavier Johnson, One L. Goh, Randy Stair, Stephen Paddock, Devin Patrick Kelley, William Atchison, Nikolas Cruz, Nasim Najafi Aghdam, Dimitrios Pagourtzis, Jarrod Ramos, David Katz, Robert Bowers, Scott Beierle, Ian Long, Zephen Xaver, Dakota Theriot, Gary Martin, John T. Earnest, Trystan Terrell, Devon Erickson and Alec Maya McKinney, DeWayne Craddock, Santino William Legan, Patrick Crusius, Connor Stephen Betts, Seth Ator, Nathaniel Berhow, Mohammed Saeed Alshamrani, Anthony Ferrill and Gregory Paul Ulrich.

Sex and ethnicity

The overwhelming majority of mass shooters in the U.S. are male, with some sources showing males account for 98% of mass shooters.[50][51][52] According to Sky News, male perpetrators committed 110 out of 114 school shootings (96%) in the period 1982-2019,[53] compared to homicides in general in the United States, where 85.3% of homicides were committed by males.[54]

A study by Statista showed that 65 out of 116 (56%) U.S. mass shootings in a period from 1982 to 2019 involved "white" shooters,[55] roughly in line with the roughly 60% of the U.S. population regarded as white in 2018.[56] According to a database compiled by Mother Jones magazine, the race of the shooters is approximately proportionate to the overall U.S. population, although Asians are overrepresented and Latinos underrepresented.[52]

A fact-checking review by PolitiFact suggests that although white male perpetrators are greatly over-represented compared to white males in the general U.S. population, this is more likely to be because of their being men, as opposed to their being white.[57]

Criminal records and mental health

Criminologist James Allen Fox said that most mass murderers do not have a criminal record, or involuntary incarceration at a mental health centre,[58] but an article in The New York Times in December 2015 about 15 recent mass shootings found that six perpetrators had had run-ins with law enforcement, and six had mental health issues.[59]

Motives

Mass shootings can be motivated by religious extremism (e.g., Islamic extremism), political ideologies (e.g., neo-Nazism, terrorism), racism, sexual orientation, misogyny,[60] mental illness,[61][62] and extensive bullying,[63] among other reasons.[50] Forensic psychologist Stephen Ross cites extreme anger and the notion of working for a cause—rather than mental illness—as primary explanations.[64] A study by Vanderbilt University researchers found that “fewer than 5% of the 120,000 gun-related killings in the United States between 2001 and 2010 were perpetrated by people diagnosed with mental illness.”[65] John Roman of the Urban Institute argues that, while better access to mental health care, restricting high powered weapons, and creating a defensive infrastructure to combat terrorism are constructive, they do not address the greater issue, which is “we have a lot of really angry young men in our country and in the world.”[66]

Author Dave Cullen, in his 2009 book Columbine on the infamous 1999 Columbine High School massacre and its perpetrators Eric Harris and Dylan Klebold, described Harris as an “injustice collector.”[67] He expanded on the concept in a 2015 New Republic essay on injustice collectors,[68] identifying several notorious killers as fitting the category, including Christopher Dorner, Elliot Rodger, Vester Flanagan, and Andrew Kehoe. Likewise, mass shooting expert and former FBI profiler Mary O’Toole also uses the phrase “injustice collector” in characterizing motives of some mass shooting perpetrators.[69] In relation, criminologist James Alan Fox contends that mass murderers are “enabled by social isolation” and typically experience “years of disappointment and failure that produce a mix of profound hopelessness and deep-seated resentment.”[70][71] Jillian Peterson, an assistant professor of criminology at Hamline University who is participating in the construction of a database on mass shooters, noted that two phenomena surface repeatedly in the statistics: hopelessness and a need for notoriety in life or in death.[72] Notoriety was first suggested as a possible motive and researched by Justin Nutt. Nutt stated in a 2013 article, “those who feel nameless and as though no one will care or remember them when they are gone may feel doing something such as a school shooting will make sure they are remembered and listed in the history books.”[73]

In a 2019 op-ed for the Los Angeles Times, [74] Jillian Peterson and James Densley of The Violence Project think tank presented a new, hopeful, framework to understand mass shootings. Based on a study funded by the National Institute of Justice, Peterson and Densley found mass shooters had four things in common: (1) early childhood trauma and exposure to violence at a young age; (2) an identifiable grievance or crisis point; (3) validation for their belief system, have studied past shootings to find inspiration; and (4) the means to carry out an attack. This new framework highlights the complexity of the pathway to a mass shooting, including how each one can be “socially contagious,”[75] but also provides a blueprint to prevent the next mass shooting. Each one of the four themes represents an opportunity for intervention. By reducing access to firearms (means), slowing contagion (validation), training in crisis intervention de-escalation (crisis), and increasing access to affordable mental healthcare (trauma), a mass shooting can be averted.

In considering the frequency of mass shootings in the United States, criminologist Peter Squires says that the individualistic culture in the United States puts the country at greater risk for mass shootings than other countries, noting that “many other countries where gun ownership is high, such as Norway, Finland, Switzerland and Israel . . . tend to have more tight-knit societies where a strong social bond supports people through crises, and mass killings are fewer.” He is an advocate of gun control, but contends there is more to mass shootings than the prevalence of guns.[76] The Italian Marxist academic Franco Berardi argues that the hyper-individualism, social alienation and competitiveness fomented by neoliberal ideology and capitalism creates mass shooters by causing people to “malfunction.”[77]

Social science and family structure

A noteworthy connection has been reported in the U.S. between mass shootings and domestic or family violence, with a current or former intimate partner or family member killed in 76 of 133 cases (57%), and a perpetrator having previously been charged with domestic violence in 21.[78][79]

Moynihan said that “almost all school shooters come from families where the parents are either divorced or alienated,”[80] and Cook argued that “perhaps they wouldn’t need more gun control if they had better divorce control.”[81]

Mass shooting Perpetrators articles: 130