LOS ANGELES, May 16 — Cardinal Roger Mahony, head of the Archdiocese of Los Angeles, has apologized for transferring a Roman Catholic priest from church to church despite an alleged confession from the man that he had molested children for years. The apology is the latest development in the sexual abuse scandal that has roiled the Roman Catholic Church. EARLIER THIS week, Mahony faxed a two-page letter to 1,200 priests in the archdiocese, acknowledging that he mishandled the case of the Rev. Michael Baker. “As your archbishop, I assume full responsibility for allowing Baker to remain in any type...