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School shootings in the U.S. since Jan. 1 of this year -- the most recent being on Tuesday in Benton, Ky., where a 15-year-old killed two students and injured 12 other people.

School shootings in the U.S. since Jan. 1 of this year -- the most recent being on Tuesday in Benton, Ky., where a 15-year-old killed two students and injured 12 other people.

Caroline Cournoyer is GOVERNING's senior web editor.