NEW YORK, Sept. 5 (Xinhua) -- The latest mass shooting in the United States, which happened in Georgia on Wednesday killing four people, was the country's 30th mass killing this year, according to a database maintained by The Associated Press and USA Today in partnership with Northeastern University.
At least 131 people have died this year in those mass killings, which are defined as incidents in which four or more people die within a 24-hour period, not including the killer -- the same definition used by the FBI.
