Complex sentence: Reverend Oliver O'Grady later confessed to the abuse of many other children and the documentary "Deliver Us from Evil" was made about his story and the cover-up by Diocesan officials.
Split into simpler sentences: Reverend Oliver O'Grady later confessed to the abuse of many other children. The documentary "Deliver Us from Evil" explored his story and the cover-up by Diocesan officials.