Wow you sent them 5 BTC?
They sent 5BTC to themselves. Internal output.
He said it was sent to you?
To my casino deposit address.
Right and that is almost $4,000 that doesn't belong to you. He even offered you some as a courtesy. Please do not rip them off and send that back to them!
This guy talking..he scammed me for 29,000 Dogecoins (~ 33$) despicable people..