RIVERHEAD, N.Y. (AP) – A convicted sex offender linked to the notorious case of a girl who was kidnapped and hidden in a dungeon more than a decade ago collapsed and died Saturday at a jail after refusing medical treatment, officials said.

Sal Inghilleri, 55, collapsed at a jail in Riverhead but refused treatment, the Suffolk County sheriff’s office told Newsday. Emergency workers revived Inghilleri, who was later pronounced dead at Peconic Bay Medical Center.

The medical examiner will determine a cause of death.

Inghilleri was convicted of two counts of sexual abuse and served 12 years for molesting Katie Beers, who at the age of 9 was kidnapped and stashed in a dungeon for 16 days in 1991 at a Long Island home by John Esposito. During the investigation into the kidnapping, authorities discovered that Inghilleri had sexually abused the girl before she was abducted.