(Stillwater, Okla.) – A convicted murderer has been given a 10-year prison term for choking his cellmate while the two were incarcerated in the Cimarron Correctional Facility in Cushing, court records showed today.

Terry Joe Hammons, 31, who pleaded guilty, was also originally charged with anally raping his cellmate, but that felony count was reduced by the prosecution to gross injury last week. For that misdemeanor count, Hammons was given a one-year jail term.

Hammons’ Payne County sentences were ordered by District Judge Phillip Corley on July 16 to run at the same time as a life prison term he is serving for first-degree murder in Pottawatomie County in 2007, court records show.

Hammons and his former Cushing prison cellmate have been transferred to separate state prisons, Oklahoma Department of Corrections records show.

The case was investigated by DOC agent Robert L. Hert III, court records show.

According to Hert’s affidavit, the cellmates were involved in a sexual relationship while living together.

But on June 29, 2013, Hammons used physical force against his cellmate that caused him to pass out, the affidavit said.