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Bill Johnson

Derrick Graves

A Tennessee Bureau of Investigation probe in Monroe County has landed two deputies there behind bars today on charges stemming from a 2014 arrest and alleged assault at the local jail.

Former Monroe County Sheriff's Office captain Bill Johnson, 44, and former detective Derrick Graves, 24, are each charged on grand jury indictments with assault and official misconduct.

According to the TBI, agents determined that on April 19, 2014, the two men were working as deputies when they were involved in the assault of a person who had been arrested and was in restraints at the Monroe County Jail.

Both men were terminated from the positions in September 2014 during an internal investigation conducted by the sheriff's office, TBI officials said.

The TBI investigation began on Jan. 16.

Bonds for Johnson and Graves were set at $5,000.