i'm sorry that you're going through this right now, or any other time.

get thyself to a therapist asap. this man is ill. and the denial that he's in isn't going to help you at all. the fact that he did something to your sister and best friend,and now he's been caught again, means you cannot trust him.

please take care of yourself and your children, first. he is very, very ill and i'm afraid will take you down with him. i know this may sound harsh, but i don't see any way around what he's doing. he's probably done it before, and no one pressed charges.

good luck, pat