How Many School Shootings? All Incidents from 1966-Present

Scope and Definition of “School Shooting”

• Database uses a very broad definition: any gun brandished, fired, or bullet hitting school property, regardless of time, motive, or whether students are involved.
• Includes: late-night parking-lot disputes, homeless people shooting each other on campus, off-site shootouts where a stray bullet lands on school grounds, accidental discharges, and police drawing/firing guns.
• Some argue this is appropriate: it captures all scenarios where students or staff could be harmed and can be filtered later into subcategories.
• Others say it conflicts with common usage, where “school shooting” implies an on-campus, school-hours, multi-victim attack targeting students/staff (a “Columbine-like” event).

Classification vs. Emotional Framing

• One side sees attempts to exclude parking-lot/gang/homeless incidents as minimizing gun violence or “arguing away” the problem.
• The other side sees the broad definition as rhetorically manipulative—leveraging the emotive power of “school shooting” to inflate numbers and push gun-control narratives.
• Several suggest clearer terminology, e.g., reserving “school massacre” for multi-victim targeted attacks while still tracking all gun incidents on school property.

Trends and Possible Causes

• Commenters note a sharp rise in incidents from ~2018 and especially post‑2020; 2021–2024 reportedly exceed all prior years combined.
• Hypotheses (no consensus): return from COVID school closures, social isolation, worsening teen mental health, economic stress, social media and online radicalization, and a copycat/contagion effect amplified by media coverage and online “mass-shooting fan” communities.
• Some speculate about changing reporting standards or definitions; others attribute it to broader increases in gun violence.

Risk, Comparisons, and Perception

• Some argue broad inclusion doesn’t change the big picture: the US remains an extreme outlier in gun violence around schools, however defined.
• Others emphasize that mass-fatality events are still statistically rare and that public fear may be disproportionate to the individual risk.
• Several note that definitional debates can distract from the “elephant in the room”: pervasive gun availability and violence, especially affecting marginalized communities.

Other Data Points and Reactions

• 2% of shooters being school police is seen as unsurprising given who routinely carries guns on campus; many of these incidents may be accidental.
• Roughly 40% of perpetrators escaping is explained as typical for brief, dispute-driven shootings (e.g., after games, in parking lots) where no one talks.
• Some are more shocked by homelessness and armed conflict on campus than by the classification issue, tying it to housing costs and weak social safety nets.