how many people have been killed by mass shootings?
There were, on average, 16.4 such shootings a year from 2007 to 2013, compared with an average of 6.4 shootings annually from 2000 to 2006. In the past 13 years, 486 people have been killed in such shootings, with 366 of the deaths in the past seven years. In all, the study looked at 160 shootings since 2000. (Shootings tied to domestic violence and gangs were not included.) Many of the sprees ended before the police arrived, the report said.
Including the worst mass shooting of the year, which unfolded horrifically on Wednesday in San Bernardino, Calif., a total of 462 people have died and 1,314 have been wounded in such attacks this year, many of which occurred on streets or in public settings, the databases indicate.