ONTARIO, Ore. (AP) -- Oregon State Police are investigating whether a prison inmate who died a day after being found unresponsive in his cell was the victim of an assault by another inmate at the Snake River Correctional Institution in Ontario.
State officials said Tuesday that 28-year-old Michael Hagen died Friday in an Idaho hospital. He was found unconscious Feb. 2 in his cell.
The Oregonian reports that Hagen shared his cell but prison officials won't identify the other inmate or provide any other details.
Hagen was serving time for robbing a Portland check-cashing store and severely beating a clerk.
The former Comcast technician was convicted in 2009 of attempted murder, burglary and assault and had been in prison since May 2010.
Malheur County District Attorney Dan Norris said an autopsy of Hagen is scheduled for Thursday.