Inmate at Arizona state prison dead after fight

YUMA, Ariz. (AP) - Top state prison officials said on Friday that they are investigating the possible homicide of a 52-year-old inmate in Yuma.

The Arizona Department of Corrections, Rehabilitation and Reentry said Boyd died after a fight with another inmate.

He was found unconscious Thursday evening in a recreational yard at the Yuma state prison.

Boyd was serving a sentence for two counts of first-degree murder, two counts of kidnapping and other charges. He had been in prison since May 2000.