mass shooting: References & Edit History
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Primary Contributors
- Kenny Chmielewski
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Michael Ray
Michael Ray is an assistant managing editor who has worked at Britannica since 2003. In addition to leading the Geography and History team, he oversees coverage of European history and military affairs. He earned a B.A. in history from Michigan State University in 1995.
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Updated for the Bondi Beach shooting. | Dec 17, 2025 | ||
| Add new Web site: Congress.gov - How to Define Mass Shootings: Potential Policy Implications. | Nov 24, 2025 | ||
| Added cross-references. | Jul 11, 2025 | ||
| Added cross-reference to Parkland high school shooting. | Jun 12, 2025 | ||
| Updated for the death of Columbine victim Anne Marie Hochhalter. | Mar 14, 2025 | ||
| Replaced photograph. | Aug 15, 2024 | ||
| Add new Web site: Psychology Today - Mass Shootings. | May 06, 2024 | ||
| Link added. | Apr 28, 2023 | ||
| Infographic added. | Feb 16, 2023 | ||
| Corrected display issue. | Jan 23, 2023 | ||
| Added accounts of notable mass shootings. | Jan 23, 2023 | ||
| Corrected display issue. | Nov 09, 2022 | ||
| New article added. | Nov 04, 2022 |
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