NEW : Priest , now deceased , is believed to have molested thousands boys , victims advocate says . ` Suit alleges a cover-up involving the priest at a Wisconsin parochial school . Pope Peter Isely is named in suit that alleges cover-up of sexual abuse . The lawsuit demands the Vatican release the names of up to 200 of Mexican priests .
NEW : Priest , now deceased , is believed to have molested thousands boys , victims advocate says . Suit alleges a cover-up involving the priest at a Wisconsin parochial school . Pope Peter Isely is named in suit that alleges cover-up of sexual abuse . The lawsuit demands the Vatican release the names of up to 200 of Mexican priests .