Prosecutors have charged an 87-year-old Bonner Springs nursing home patient with beating another resident who later died.

Wyandotte County district attorney’s office said Tuesday that Douglas Nelson is charged with mistreatment of a dependent adult.

Prosecutors are awaiting autopsy results to determine whether 48-year-old William Webb died because of the injuries Nelson allegedly inflicted. Prosecutors say that’s when they’ll decide if other charges should be filed.

Webb was found dead Sunday, when officers were called to the Bonner Springs Nursing and Rehabilitation Center to assist in an ambulance call.

A judge has ordered Nelson to undergo a psychiatric exam. He’s being held at the Wyandotte County Jail on $50,000 bond.