In July, we created a map showing the locations of the year's mass shootings to that point. That map used data collected by ShootingTracker.com, a crowd-sourced project attempting to catalog incidents in which four or more people were injured or killed by gunfire -- a broader definition of the term "mass shooting" than the one used by the federal government. In light of Wednesday's shooting in San Bernardino, Calif., we decided to update that map. Below: All of the shootings through Dec. 2 (as of 1 p.m. Pacific/4 p.m. Eastern).There have been 334 days and 351 mass shootings so far this year - The Washington Post
There have been at least 351 mass shootings so far this year, according to news reports collected by a reddit community that tracks these incidents. The reddit tracker defines mass shootings as incidents in which four or more people, including the gunman, are killed or injured by gunfire. The Mass Shooting Tracker is different from other shooting databases in that it uses a broader definition of mass shooting — the old FBI definition focused on four or more people killed as part of a single shooting. There were at least 12 mass shootings in the U.S. last week so far, counting the Colorado Springs shooting. That shooting would also be the second mass shooting in Colorado Springs this month.