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mass shootings mass murders graphics reports charts

Charts

New ways of looking at the data such as timelines, scatterplots, or network graphs help understand and visualize relationships and patterns.

mass shootings data records incidents

Data

The data has been collected using many different sources and is factual to the best of our knowledge from media sources.  If you would like access to the complete dataset, contact us.  We will also consider adding other information or events brought to our attention.

A new perspective on a national issue

This  website has been built by the Stanford Geospatial Center for the purpose of understanding the history of  mass shootings in the United States over the past few decades.  It is hoped that by presenting the data in visual form, patterns may emerge that can be studied to help prevent future tragedies and that this information contributes to the national debate.

The database is not fully finalized and many questions remain as to what to include on the site.  The names of all shooters have been removed from the maps and charts. However this information, as well as their age, sex, history of mental illness, and possible motive remain in the original dataset that is available at no cost to the public.  We will continue to build out this website with pertinent state and federal regulatory information related to firearms and will continue to add to the dataset in order to make it more complete.  

The data, maps, and graphics are free and may be embedded on any website with proper attribution.  Please contact us if you would like access to the dataset, would like to embed the graphics in your own website or publication, or have suggestions to improve this site.

Maps
mass shootings map murders

This interactive map shows the latest incidents in the US for the past few decades. Symbol size and color is displayed by the number of fatalities during each incident. Click on a symbol to find more information about the incident.

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