Career
Born in New York City, Killeen was ordained to the priesthood on May 30, 1947. On November 7, 1975, Killeen was named titular bishop of Vamilla and auxiliary bishop of the Roman Catholic Archdiocese for the Military Services, United States of America. Prior to being named a bishop he had served as Chief of Chaplains in the United States. Navy. He was consecrated bishop on December 13, 1975 and died in office.
