Yeah, I completely second what Cracked said about involving other organizations.
Reading your posts has been hard. What that guy did, and is still doing is...
Yeah, take care of your safety, and the ones of your kids, but don't leave his daughters alone. They are not saying much because there are so many conflicting feelings inside. The person who was supposed to protect them and love them has abused them. They may have conflicting memories and feelings towards them, and they may even dissociate to deal with what they are going through.
Try to provide the girls with information on how what their father is doing is wrong on so many levels. Send them information they can read, and have a different perspective to what they have gone through.
Don't stop on your quest to finding someone who listens. And the videos you've got, they should be prove, it is impossible that for that for the law the way those videos were got is more important than the content of those videos.
Be careful, but be brave too. Involve those who know around him, and all together act in defense of those girls, and anyone else who is in danger of that John.
Sea
Taking myself some time away from PF. Sea (Dec, 2016)