OMAHA, Neb. -- A Tecumseh State Correctional Institution inmate, who was sentenced to life for murder out of Douglas County, died Monday. 

Officials with TSCI said that 62-year-old Marty Nuzum died at a Lincoln hospital. 

Nuzum was incarcerated at TSCI, where he began his sentenced Feb. 25, 2003. Authorities said he was serving a life sentence on charges out of Douglas County that included first-degree murder. 

Officials said that while the cause of death has not been determined yet, Nuzum was being treated for a medical condition. 

As is the case whenever an inmate dies in the custody of the Nebraska Department of Correctional Services (NDCS), a grand jury will conduct an investigation.