Methodological Note on Preventable Tragedies: Unintentional Shootings by Children

This Note is a companion to the June 2025 “Ten Years of Preventable Tragedies” report.

Definition 

Everytown defines an unintentional shooting by a child as an incident where someone age 17 or younger unintentionally shoots themself or someone else. 

To be included in the Everytown dataset, the person who fired, discharged, or was handling the gun—or otherwise caused the gun to fire—must be under the age of 18, and the shooting must not have been intentional. Incidents in which a child believed a gun to be unloaded when they fired it, were playing with the gun and did not intend to fire it, or intended to fire it but not at a person (such as while hunting) are considered unintentional shootings and are thus included in the dataset. 

Everytown researchers rely primarily on official determinations of whether an incident is unintentional, including statements by police, investigators, and/or the courts. When an official determination is not available, at least two researchers review the case to make an informed, independent decision. For example, an incident in which an older teen died of a self-inflicted gunshot wound would not be considered unintentional if no other detail indicating intent is available. An incident in which a toddler died of a self-inflicted gunshot wound would reasonably be included as an unintentional shooting if details indicate that the child did not realize or intend for the gun to fire, often taking into consideration the child’s behavior before the shooting or the circumstances under which the gun was found.

Data Collection

Everytown researchers identified 3,580 unintentional shootings by children from January 1, 2015, through December 31, 2024. Incidents are identified primarily through media reports and are revisited periodically for accuracy as more information becomes available. 

Researchers also track characteristics of each incident in the database, including the type of firearm used, how and where the firearm was stored when the child accessed it, the location and date of the shooting, the relationship of the victim to the shooter, and whether an incident resulted in criminal charges. By consulting official accounts, media reporting, and family and witness testimony, researchers also collect available demographic information on people involved in an unintentional shooting, including the shooter, the victim, the gun owner, and anyone charged in connection with the incident. Specific information about the people involved in these incidents is often unknown, however, largely because all of the shooters and most of the victims are children and benefit from laws and practices related to protecting the privacy of minors.