Inmate convicted, faces life term in Arizona stabbing death

An Arizona prison inmate has been convicted in the stabbing death of a fellow prisoner.

Maricopa County prosecutors say 35-year-old Marlon C. McCowan was found guilty Monday. He faces a possible life prison term when he's sentenced Sept. 27.

McCowan's accomplice -- 32-year-old Richard A. Johnson -- agreed to plead guilty to solicitation to commit second-degree murder. Prosecutors say he will remain incarcerated for an additional five years following his current prison term.

McCowan and Johnson were inmates of the Lewis Prison Complex in Buckeye at the time of the stabbing on June 16, 2010.

Authorities say McCowan stabbed Albert Tsosie nine times with a metal shank while Tsosie was restrained by Johnson.

At trial, McCowan argued that he acted in self-defense.