[G-spec]

Cut your ties with these idiots now !

They already committed more than one criminal offence, and yet you keep asking them to go back and finish the work..... do you REALLY want these guys in your house again, do you REALLY trust them to do anything right at this point ?

You don't owe them any money because they haven't finished the project, it's that simple....
Use the money to find a reputable contractor that will finish the job without stealing and threatening in their tactics.

And tell them to go fuck themselves and sue you if they want, the judge will laugh at them if it even ever gets to in front of a judge, and in this case unfortunately it would end up as a civil case not a criminal one, which is unfortunate because there is obviously a criminal element there with the stealing.

Dont believe a word the police dispatchers or any of those idiots tell you, if you want real answers go pay a lawyer for a simple sitdown that will explain to you everything you need to know, it beats coming in here asking us for advice.