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What counts as a mass shooting? This site uses data from the Gun Violence Archive, which defines a mass shooting as any incident in which 4 or more people are shot or killed, not including the shooter.
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These organizations are highly rated by Charity Navigator and work to prevent gun violence through legislation, education, and community action.
Everytown for Gun Safety
Advocacy & Policy
The largest gun violence prevention org in the US, with 11M+ members pushing for universal background checks and evidence-based policy reform.
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Sandy Hook Promise
Prevention & Education
Founded by parents of Sandy Hook victims. Their school programs have prevented 14 planned shootings and saved 400+ lives through early intervention.
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Giffords Law Center
Law & Litigation
Founded by gun violence survivor Gabby Giffords. Fights in courts and legislatures for background checks, extreme risk laws, and assault weapon restrictions.
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