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MCCORMICK (AP) -- South Carolina authorities have accused a prisoner of the stabbing death of another inmate at a maximum security prison.

The State Law Enforcement Division said Tuesday that 21-year-old Jack Cooper had been charged with murder.

Authorities say 26-year-old Lamont Perry was attacked around 7:30 a.m. Saturday in a dormitory at the McCormick Correctional Institution and died a short time later.

Perry had spent more than four years behind bars on a 15-year sentence for second-degree criminal sexual conduct. Cooper began serving a 12-year sentence for armed robbery in 2007.

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