Sending many prayers for you and your girls. Have you told the therapist about finding the bottle of vodka? He probably thought it was a safe place to hide, but it could be possible he's also been giving some to the girls? It's a horrific thought, but all this is.
Somehow through all this, your daughters and you will be okay. You are all getting help. You know how to reach out and are in their corner even if the courts are absolute idiots. I hope your police department will be able to do something with having this reported!
As hard as it may be, find time to take care of you. It's the best way to be there for your girls. (((((wtbh)))))