Two men already in custody at the Hennepin County Jailhave been charged with first-degree assault for a planned attack that left another inmate with permanent hearing loss.

The incident happened around 2:43 p.m. on July 16 in the Quad 14 dayroom of the downtown Minneapolis jail.

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Surveillance video captured Joshua Anthony Jones, 37, and David James Cook Jr., 28, coordinating an attack on another inmate who suffered significant injuries to his ear, including a near-complete eardrum tear and long-term hearing damage.