Convicted killer dies in state custody

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LINCOLN, Neb. -- Nebraska prison officials say a 55-year-old inmate serving life for murder has died in a Lincoln prison while being treated for a medical condition.

The Nebraska Department of Correctional Services said Thursday in a news release that Donald Waldner died Wednesday night at the Diagnostic and Evaluation Center in Lincoln, where he was being treated.

Officials say his cause of death has not been determined.

Waldner was serving two life sentences out of Colfax County for the 1989 shooting deaths of his estranged wife, Deborah Waldner, and her co-worker, Joseph Wozny, as they entered the meatpacking plant where they worked.