Lawton,Okla_A Lawton Geo Prison inmate accused of beating his roommate to death pleaded guilty to the crime Tuesday and was sentenced to 35 years in prison.
Joseph Palone changed his plea during an appearance in a Comanche County court room Tuesday morning. Palone beat his cell mate Matthew Dorrough to death last February.
Palone told investigators Dorrough started the fight with him and he'd acted in self defense.
Palone must serve the 35 years after he finishes a 10 year sentence for attempted robbery and concealing stolen property.
He was sentenced on the previous conviction in April of 2010.