Chicago accounted for approximately 10 percent of mass shootings during a 17-month period in the U.S., according to data analyzed by The Daily Caller News Foundation.
The New York Times Editorial BoardÂ created a graphicÂ depicting the total amount of mass shootings committed between June 12, 2016 (the Pulse Nightclub attack) and Oct. 1, 2017 (the Las Vegas massacre), based on data from the Gun Violence Archive.
The Gun Violence Archive, a nonprofit that tracks gun violence in America, defines mass shooting as incidents where â€œFOUR or more shot and/or killed in a single event, at the same general time and locationÂ not including the shooter.â€
TheDCNF examined the number of mass shootings committedÂ per city in that 17-month period, and found that Chicago made up about 10 percent of those incidents. Of the 521 mass shootings committed, approximately 53 occurred in the city of Chicago.
Chicago, on average, represented about 11 percent of total mass shootings in the country each month. The city, racked by gang violence, sees about three mass shootings per month, according to the data.
The city accounted for 19 percent of mass shootings in June 2016 alone, experiencing six mass shootings out of the 31 that occurred in entire country for that month. Chicago saw an average of about three mass shootings per month between July 2016 and October 2016, while the mass shootings climbed during November 2016 and December 2016.
The city accounted for about 14 percent of mass shootings in November of last year, while almost 19 percent of mass shootings happened in Chicago in December of last year.
Entering into 2017, Chicago accounted for 10 percent of mass shootings in January, 14 percent of mass shootings in March and 11 percent in July.
The metricsÂ for measuring mass shootings that the Gun Violence Archive uses are questionable, though, as they potentially allow more events to be considered â€œmass shootings.â€ The FBI uses a much stricter definition, describing a mass shooting as an event in which at least three people are killed and an â€œactive shooter â€¦ engaged in killing or attempting to kill people in a populated area.â€
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