About the camera's, you overlook another possibility.
Maybe he is a sadist and enjoys watching the infliction of pain. Maybe it pisses him off when they take the kids to the halls. Maybe the staff knows this, but knows he can't say so, and so get their own gollies aggravating him.
I have herd a witness to a beating state, that K.K. took pictures of the kid laying passed out in the floor, as a result of this beating - but as no staff were fired - you have to wonder why he wanted pictures. This was while he was visiting Dundee - and the staff were his Jamaican transplants he claims to have no knowledge of.