He needs to learn the hard way apparently.
1 Cor 5:
5 I have decided to deliver such a one to Satan for the destruction of his flesh, so that his spirit may be saved in the day of the Lord Jesus.
I think pain, and agony will change things for the better. From what I know, only pain and agony, special graces from God, will straighten up the act of such a person.
I suggest, taking a hammer, and destroying the computer, tv, and radio. Get an audio-bible, and a stereo for it. Make your intention clear when doing this. This is like a dues ex machina move, and it's completely crazy, but desperate times call for desperate measures.
Another thing, he doesn't seem smart enough to notice the cunning craftiness of the devil, and how he works on the heart. He nudges us into a certain direction, tells us to be happy for ourselves in some worldly way... and next things you know the man's mind is in the gutter due to a lack of diligence in being in God's word. He'll be off to all sorts of wickedness. He's too weak willed to be left to himself, and clearly needs help. At least, from what you've described, it's a pretty terrible situation.
Pain, and suffering. It will come one way or another. Let's just hope and pray its for the better, because the road from here on is one of suffering.