CHICAGO (AP) — The shooting deaths of an off-duty Illinois State Police trooper and his wife have been ruled a murder-suicide by the Cook County Medical Examiner’s Office.

It says An autopsy released Tuesday found 30-year-old Antonio Alvarez died of a self-inflicted gunshot wound to the head. The medical examiner’s office says 31-year-old Amanda Alvarez died of a gunshot wound to her head and her death was ruled a homicide.

WLS-TV reports Amanda Alvarez’s family said the couple was having problems in their marriage and that she had told relatives she intended to leave him.