A suspect opened fire at the Abundant Life Christian School in Madison, Wis., on Monday, killing two people and injuring six more before dying of what police believe to be a self-inflicted gunshot wound.
It's one of more than 320 shootings that have taken place on school grounds this year alone, according to the K-12 School Shooting Database.
While school shootings are widespread in the U.S., this one is unusual because of the identity of the suspected perpetrator: Authorities have identified her as a 15-year-old girl.
Data shows that female shooters — at schools and in general — are relatively rare.
An FBI review of active shooter incidents from 2000 to 2019 found that of the 345 total perpetrators, 332 were men and just 13 were women.
Similar statistics bear out when it comes to mass shootings, which the FBI defines as any incident in which at least four people are murdered with a gun (so Monday's does not meet that criteria).
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