Updated

A Roman Catholic priest convicted in 2006 of killing a nun in an Ohio hospital chapel two decades earlier has died. The Rev. Gerald Robinson was 76.

Robinson was serving 15 years to life in prison. His attorney, Richard Kerger, says the family told him Robinson died Friday morning at a Columbus prison hospice unit.

A federal court had refused Thursday to release Robinson so he could die in his hometown, Toledo.

Robinson was convicted of strangling and stabbing Sister Margaret Ann Pahl during Easter weekend in 1980. Church historians have said it's the only documented case of a priest killing a nun.

Prosecutors say Pahl's domineering ways angered Robinson. They say he tried to humiliate Pahl in her death. Her wounds formed an upside-down cross.

Robinson maintained his innocence.