Also worth noting: they never paid the fake winner's address (https://blockchair.com/bitcoin/address/bc1q8zr62hardk5kkjym5femqtqsqfpwnakstzpg9z).
If there was any doubt who was behind the winner account now there isn't. 
I can't help but find it amusing that they tried to rig the competition. It was almost comical to see their shady casino operation come crashing down in such a spectacularly miserable way.
As LoyceV pointed out, this was a scam waiting to happen and could have had much more severe consequences.
I kinda expected OP to create one but since he didn't here it is, flag type 1 https://bitcointalk.org/index.php?action=trust;flag=3077
Flag supported.