A Lincoln inmate accused of assaulting the corrections officer assigned to watch him while he was in a Lincoln hospital receiving treatment has died.
The Nebraska Department of Correctional Services says Robert Carter had been dealing with significant long-term health problems before he died Tuesday, though the department says the cause of death has not yet been determined.
Officials say Carter stabbed the correctional officer with a butter knife in the hospital room where he was being treated on Sept. 5.
The officer received cuts on his head, neck and ear. He was treated at the hospital and released.
The 50-year-old Omaha area man was serving a 30-year sentence for several counts of robbery and for assaulting an officer. He wasn't projected to be released until 2036.
Carter was in the Nebraska State Penitentiary skilled nursing facility when he died.
A grand jury will investigate the death because Carter was in state custody.