Every Month, a Multi-Person Shooting in the U.S.
Here's a frightening list: every month there has been a shooting of multiple people in the U.S. Of course not all are "mass shootings," but many include the words "open fired" and were at places—like nightclubs, restaurants, NBA games, parties—with crowds: http://www.bradycampaign.org/xshare/pdf/major-shootings.pdf.
