Firstly, Go to court!!!
It is so frustrating for police to constantly deal with these cases only to have the victims retract only to start all over again! It spirals down and the statistics are not in your favor.
Fair play to your son for saying no! Isn't he the smart one?
I think your husband is not a nice person at the moment. Protect your money, mind, body from this guy. You can put security on your bank accounts etc. Freeze his bank accounts etc.
Don't get scared, get mad and get busy! Good luck.