Since January 2009, there have been at least 106 mass shootings in the US. Not all of them make headlines—and the story they tell might be different from the one the media would have you expect.
Using FBI data and media reports, Mayors Against Illegal Guns developed an analysis of mass shootings that took place between January 2009 and September 2013. The analysis found that there have been more than 90 mass shootings in this nearly five-year period.