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The cadets were attending a class at the College of the Mainland Law Enforcement Training Academy when the weapon fired around 7:40 p.m., Texas City police spokesman Cpl. Allen Bjerke said in a written statement.
The cadet, identified as Clayton Whatley, was believed to be reaching into his backpack when the gun discharged, striking two classmates in their calves and grazing a third, Bjerke said.
The shot cadets were taken to a hospital with non-life threatening injuries.
Whatley has not been charged at this time, police said, adding that the school is cooperating with the Texas City investigation.
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