Did you tell his father about this? I think it's important to know when you have an active addict in your home.
And about the $4000 and drug cache...if the police knocked on your door this minute, how would you explain them?
Sweetie, my son is an addict too and I truly know your pain, but this is pretty serious stuff to be dealing with.
Perhaps it's time to call in the troops....any family and support you might have to help you figure out how to handle this without endangering yourself or anyone else.
My prayers are with you all this weekend, I know it may be even harder right now.
Hugs from a mom whose been there.