How is Mel not living in sin? He was married to his wife for 29 years and then tried to say it was never a marriage. He had a baby with another woman to whom he was not married.
But ignore his public statements if you don’t trust them.
Look at his public behavior. Anyone who behaves as such will face an accounting that no pastor or priest can absolve.
You have less faith in the salvic power of God than I do. So sad.