Does this prove that he is behind the shady LTC Casino?
I have done a lot of research which wasn't necessary and still, you have no answer regarding that. But if you see the trust of that person then you could know that the self-confession of that person is that s/he is the owner of LTC casino. Evidence:
https://bitcointalk.org/index.php?topic=5377941.msg59185512#msg59185512 You can see this has been mentioned on his/her trust page.