By WAYNE PARRY
Associated Press

(AP) -- A New Jersey doctor accused of arranging the slaying of his radio host wife to keep her from exposing a drug distribution ring he was running with an outlaw biker gang was found dead in his jail cell Friday in an apparent suicide.

Authorities did not release details of how Dr. James Kauffman died but say there does not appear to be foul play. He was found alone in his cell at the Hudson County jail during a routine check of prisoners, and corrections officers checked on him when he did not respond, county spokesman James Kennelly told The Associated Press.

Kauffman was charged with arranging the 2012 killing of his wife, April, to prevent her from exposing an illegal drug distribution ring he was running with the Pagans biker gang.

He had been the subject of death threats after his arrest, prompting his transfer from the Atlantic County Jail in Mays Landing, New Jersey, to the Hudson County jail nearly 100 miles north. Authorities said the switch was made for his own protection.

A co-defendant in the case also is charged with trying to have Kauffman killed behind bars to prevent him from coming to trial.