Heisenburg

QUESTION: What if you know of someone in your ward, now in his 50's, that had sexual intercourse (rape) with a 15 year old girl in the ward 10 years ago? The man confessed the act to his church leaders. No one reported this to the authorities. The man was given some sort of discipline short of excommunication. This man currently serves in a PEC calling. No one knows this happened. I have 3 teenage daughters. What do you do? Parents have a right to know.