“The priest who reveals confessional material ceases to be a priest.”
He ceased being a priest when he gained knowledge of a hideous crime against a child and remained silent.
L
It depends how he gained it. If it is outside of the confessional, it is his duty to report an apparent crime. If it is during a sacramental confession, it is even more his duty to keep it secret, although he should advise the guilty to surrender to police.