Skip to content
Search

Latest Stories

Follow Us:
Top Stories

Reducing gun violence requires differentiation of mass shootings

Reducing gun violence requires differentiation of mass shootings
Getty Images

Jiao is a professor of criminal Justice at Rowan University. His research focuses on policing issues in the U.S. and other countries and regions. Overarching themes of Jiao’s writings include Consent Decrees on Police, Policing Gun Crimes, and Police reforms.

Current media portrayal of and public debate about gun violence are big on shock values but short on solutions. Broad definitions of mass shootings with no differentiation of types of shootings, victims, and circumstances, lumping gang violence, home invasions, armed robberies, familicides, and personal vengeance together with random public mass killings are not conducive to effective interventions.


Only incidents involving four or more shot and killed randomly during a singular event in a public place should be considered mass shootings to differentiate them from more common types of gun violence and allow the police and society to develop relevant and effective strategies tailored to specific types of incidents.

With this definition, there are usually a handful of mass shootings involving fewer than 80 murdered victims out of more than 15,000 total gun violence deaths in a given year. There were 31 mass shootings from 2017 through 2021, about six per year (Marshall Project) and four in 2022 in Buffalo, New York; Uvalde, Texas; Tulsa, Oklahoma; and Highland Park, Illinois. There were 74 mass shooting deaths among about 15,000 gun homicides in 2019 (CDC.gov and Wilson, 2021). From 1966 -2020, there were 420 mass shootings, 1449 deaths, which account for 27 deaths per year (Rockefeller Institute of Government).

Even including shootings in both public and private spaces, any number of shooters, and regardless of motives, there were 206 incidents in the last ten years from 2012 to 2022, an average of about 20 per year (Every Town for Gun Safety). But there were 15,448 total gun crime deaths in 2019, 19,411 in 2020, 20,100 in 2021, and about 19,592 in 2022 (CDC). Even expansive definitions that include about 550 to 650 events as mass shootings (Gun Violence Archive) still account for less than 1% or only a fraction of all gun murders that occur each year.

Recommendations on Addressing Public Mass Shootings

With random public mass shootings being extremely rare and over 99% of gun homicides involve more routinely occurring incidents, our police and society should differentiate different types of gun violence and implement strategies that capture their nuances and contexts. Due to mass shootings’ rarity and lack of patterns, they are extremely difficult to prevent by police themselves. While gun legislations might be important at the national level, the most immediate and realistic ways to address mass shootings are risk assessment and target hardening at the state and local level (Capellan and Jiao, 2019).

  • State-level risk assessment centers should be established to identify and analyze risks and disseminate risk information to local establishments.
  • At-risk entities should fortify their facilities, making their environments unattractive, increasing the effort and risks of offenders, and thus disrupting opportunities for mass shootings.

Recommendations on Addressing Routine Gun Homicides

For the overwhelming majority of gun homicides that occur routinely, the police and the public should be able to discern their patterns and apply strategies according to their natures. Several strategies have been proven effective, including problem-oriented policing, comprehensive policing, situational/routine activities, and ten-driven law enforcement (Jiao, 2022).

  • Problem-oriented policing involves directed patrols and focused deterrence and may have a significant effect in reducing gun homicides due to street fighting and gang rivalries.
  • Comprehensive policing combining immediate tactical responses and community-oriented policing may achieve a sustainable impact on gun violence rooted in underlying social, economic, and cultural conditions such as home invasions and armed robberies.
  • Situational/routine activities involve deploying resources in areas and contexts prone to gun violence by using a variety of situational measures such as risk analysis, traffic/pedestrian stops, firearm removal, differential licensing, and sting operations to reduce gun homicides due to drugs, personal vengeance, and family violence that tend to recur in specific locations and domestic settings.
  • Tech-driven law enforcement utilizing gun tracing/ballistics analysis can improve gun homicide clearance and thus have a deterrence effect on premeditated gun murders.

Meanings tend to be lost in broad discussions of gun violence data. Accurate definitions and understandings of true mass shootings and other more common types of gun homicides would allow our police and society to focus on specific intervention strategies and reduce gun violence deaths. Research has demonstrated that there are effective strategies at the disposal of our police and society in addressing various forms of gun violence as outlined above.

For more information:

  • Centers for Disease Control and Prevention (CDC). CDC.gov
  • Every Town for Gun Safety. Everytown.org
  • Gun Violence Archive. Gunviolencearchive.org
  • Marshall Project. Themarshallproject.org
  • Rockefeller Institute of Government. Rockinst.org

For further readings

  • Capellan, Joel A. and Allan Y. Jiao. (2019). Deconstructing Mass Public Shootings: Exploring Opportunities for Intervention. Albany, New York: Rockefeller Institute of Government, Regional Gun Violence Research Consortiu
  • Jiao, Allan Y. (2022). Policing Gun Crimes: A Comprehensive Review of Strategies and Effectiveness. The Police Journal: Theory, Practice and Principles. DOI: 10.1177/0032258X221113454 Wilson, Chris. (2021). 41 years of mass shooting

Read More

Keep artificial intelligence out of American classrooms

Fourth-grade students read books in the elementary school at the John F. Kennedy Schule dual-language public school on Sept. 18, 2008, in Berlin.

(Sean Gallup/Getty Images/Tribune Content Agency)

Keep artificial intelligence out of American classrooms

Norway is, by almost any metric, a profoundly successful nation. It’s rich, democratic and relatively corruption-free. It’s not a socialist country, but fans of a robust welfare state and high taxes see much to admire in the very progressive Norwegian model. It also benefits from having the biggest and arguably best-run sovereign wealth fund in the world.

And yet, Norway nearly ruined its children.

Keep ReadingShow less
An illustration of orange-colored megaphones, one megaphone in the middle is red and facing the opposite direction of the others.

A growing crisis threatens U.S. public data. Experts warn disappearing federal datasets could undermine science, policy, and democracy—and outline a plan to protect them.

Getty Images, Richard Drury

America's Data Crisis: Saving Trusted Facts Is Essential to Democracy

In March 2026, more than a hundred information and data experts gathered in a converted Christian Science church to confront a problem most Americans never see, but that shapes nearly every public debate we have. The nonprofit Internet Archive convened this national Information Stewardship Forum at their San Francisco headquarters because something fundamental is breaking: the country’s shared foundation of facts.

For decades, the United States has relied on a vast ecosystem of federal data on health, climate, the economy, education, demographics, scientific research, and more. This data is the backbone of journalism, policymaking, scientific discovery, and public accountability. It is how we know whether the air is safe to breathe, whether unemployment is rising or falling, whether a new disease is spreading, or whether a community is being left behind.

Keep ReadingShow less
Warrantless Surveillance and TPS for Haitians

Bamilia Delcine Olistin restocks product at Bon Samaritain Grocery, a Haitian-owned grocery, on February 3, 2026 in Springfield, Ohio. A federal judge issued a temporary stay blocking the Trump administration's attempt to strip Temporary Protected Status (TPS) for Haitian immigrants, but Haitian TPS beneficiaries and residents of Springfield continue to face uncertainty over their protected status.

Getty Images, Jon Cherry

Warrantless Surveillance and TPS for Haitians

Warrantless Surveillance

Almost 3 weeks ago, House Republicans appeared to be spitting mad because the Senate had had the temerity to pass a DHS funding agreement overnight by unanimous consent and then recess. The Senate did that because it was the best deal that could get passed. (The House still hasn’t acted on that Senate DHS funding bill.)

But last night, around 2 am, the House passed a 10 day extension of existing Foreign Intelligence Surveillance Act Section 702 authorities by unanimous consent and then recessed until Monday. Apparently, it’s fine when the House does it. Why did the House do this? Because it was the best deal that could get passed.

Keep ReadingShow less