NEWARK, N.J. - Authorities say a former police officer killed himself after a chase with police that led state troopers to finding the body of the ex-cop's wife in his trunk.

New Jersey State police were notified Saturday night by police in Providence, Rhode Island, that Franklin Osgood was believed to be traveling on the New Jersey Turnpike.

Officers located his car, but Osgood, a former Providence police officer, refused to pull over. CBS New York reports Osgood lost control of the car and ran off the road, striking a guard rail and a state police vehicle, authorities said.

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Troopers found the 61-year-old Osgood with a self-inflicted gunshot wound when they approached the car. The body of 55-year-old Mary Jo Osgood was in the trunk.

Franklin Osgood was pronounced dead at an area hospital.

Providence police said at a news conference Sunday that Osgood's daughter had called them Saturday to say her father was missing and distraught.

The investigation shut down the Turnpike for most of the night. It was back open by Sunday morning.