This dataset accompanies the work in "Economic insecurity and the rise in gun violence at US schools".
Here we show the geographic locations of the gun violence incidents over a 23 year period. From 1990 to 2013 there are 381 incidents of gun violence in the United States. Each event here is represented as a point at the location of its incident, with the color showing when it happened (light to dark, 1990 to 2013) and size representing the number of deaths.
The data accompanying the paper can be downloaded here