0x81d012ed…2404sent to0x20cbf5c4…72f1·#19,838,273·view on Etherscan
Sir,
Do not transfer money to the central exchange. As far as I know, you are under
investigation.
Try using a crypto currency mixer, such as Tornado.Cash.
In addition, you can try to use Simpleswap (simpleswap.io) or ChangeNow (ChangeNow.io) to exchange $ETH (Ethereum) into $XMR (Monero) or other cryptocurrencies, such as bitcoin.
The stupidity of making a low-level mistake is hopeless. Even if you return the token this time, I guess he will lose all his tokens somewhere else next time.
If you want to return the token, please ask him for a reward of more than 30%. Let him learn his lesson.
God bless you.