So did the money originate from gambling or not? I am totally confused here.
I think he figured out it did come from a gambling site, he was just retelling the whole story from the beginning.
@jerry0, enter you binance address into a wallet explorer (I like https://blockchair.com) and look for that transaction you are curious about. Once you find it you can search for the address that sent the transaction on https://www.walletexplorer.com, which may tell you what service owns that wallet.
When I was trading with my friend I did some search and used wallet explorer the to see if they're using the same exchange (and we did).