Vatican says investigating alleged abuser who became priest

The Vatican said on Saturday it had opened an investigation intoreports that a former teenage altar boy, who allegedly repeatedly forced a dormitory mate to have sex with him, went on to become a priest.The allegations concerning the St. Pius X Institute, known as a pre-seminary, were made in a recent book and in Italian television reports.The pre-seminary is a residence inside the Vatican for altar boys who serve at masses in St. Peter's Basilica mostly presided over by priests, bishops and car