(Gillian Brockell, Julio Negron/The Washington Post)
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What '374 mass shootings in 365 days' looks and sounds like

January 19, 2016 | 2:55 PM GMT
There were 374 mass shootings in 2015, according the crowd-sourced database Mass Shooting Tracker. Watch this motion graphic and hear the 911 calls to get a complete picture of the human toll.