ARCHBOLD, Ohio (AP) – An Ohio college student who disappeared while riding her bicycle and was later found slain in a cornfield had been suffocated.

The Blade newspaper in Toledo reports an autopsy says Sierah Joughin was found handcuffed and bound with rope on July 22, three days after she was last seen east of Toledo.

The report says she died of asphyxiation.

Authorities have charged 57-year-old James Worley with aggravated murder and abduction in the killing of the 20-year-old University of Toledo student.

Worley’s attorney has declined to comment.

Authorities said in court documents they found handcuffs, rope and tape on Worley’s property.

Worley spent three years in prison for abducting a woman riding a bicycle along a country road in 1990. The woman said she fought off Worley and escaped after he forced her inside his truck and handcuffed her.