Her new husband answered the phone, he began yelling at me saying when he saw me that he was going to kick my a--. I don't know why.
Wow, that's messed up. I agree with the others, contact the authorities. I'm not an expert on this but I believe you can have a sheriff accompany you to their house to pick up your S. Check S for injuries, if you're suspicious then get him to a doctor and contact CPS.