"The fine print: The database-maintained by the Associated Press and USA Today in partnership with Northeastern University-counts incidents where four or more people are intentionally killed in a 24-hour period, not including the killer. Driving the news: A recent shooting at a child's birthday party in California that killed three children and one adult brought the number of mass killings so far in 2025 to 17, according to the database."
"Zoom out: The Gun Violence Archive, a separate database that uses a broader definition to include shootings where victims survived, similarly recorded a drop in bothmass shootings and mass murders so far in 2025. The archive tracked 381 mass shootings so far in 2025, with the most recent an incident that injured four men in St. Paul on Monday. Last year, the archive tracked 503 mass shootings - down from 659 in 2023."
"Worth noting: The AP-USA Today mass killing database found that most mass killings in the U.S. involve guns. This year, 14 of the 17 incidents involved firearms, and of the 629 total mass killings since 2006 in the database, 79% involved firearms. One stunning stat: While news coverage often centers around mass killings in public, the database shows that around 67% happen in and around people's homes."
Seventeen incidents qualified as mass killings so far in 2025 under the definition of four or more people intentionally killed in a 24-hour period, excluding the killer. 2025 represents the lowest annual total since 2006, while the highest yearly total was 46 in 2019. A separate Gun Violence Archive, which counts incidents including nonfatal victims, recorded 381 mass shootings so far in 2025 versus 503 in 2024 and 659 in 2023. The AP-USA Today database shows that 79% of 629 mass killings since 2006 involved firearms and 14 of this year's 17 incidents involved guns. Around 67% of mass killings occur in and around people's homes, and major-city violent crime rates have declined since the COVID-era spike, though about one in 15 adults has been on the scene at a mass shooting.
Read at Axios
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