school shootings number of victims age of shooter gender of shooter ethnicity of shooter and type of shooting

The Washington Post is compiling a database of school shootings in the United States since Columbine. This database is on GitHub and published under an Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) license

This visualizzation of the data by iXMaps shows some of the data compiled in the dataset: