Special agents with the Tennessee Bureau of Investigation are looking into an inmate's death at the Polk County Jail.

TBI spokesperson Susan Niland tells Channel 3, 42-year-old Keary Dean Neuzil, of Benton, was found hanging in his cell by a corrections employee on Wednesday night.

Niland Neuzil was taken to a hospital in Chattanooga, where he died on Thursday night. 

All inmate deaths have to be reported to the TBI no matter the circumstances.

The investigation is ongoing.

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