Everytown tracks every time a firearm discharges a live round inside or into a school building or on or onto a school campus or grounds, as documented by the press. Incidents in which guns were brought into schools but not discharged are not included. The map reflects incidents that resulted in death or injury—as well as those in which no one was injured. The information provided is primarily sourced from media reports and the K-12 School Shooting Database.
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