your and your brother know a security guard who claims to be an investor with access to $160,000 in cash? But seriously, how many investors with that kind of money work as security guards?
But then he doesn't really "have" the funds if he has to get permission to withdraw the money
unfortunately the fake "escrow" account scam, where the victim is lead to believe that his permission is needed to withdraw funds is a common type of internet fraud. Have you seen any paper work from the bank confirming any of this? Keep in mind that it's easy for scammers to forge a document and send it along as "proof".....and that applies to any proof about actual money having been sent, as well as the conditions and terms for withdrawing it......so you need something obtained independently of any involvement by "foreign investors".
Did you ever get your friend at the bank to find the transaction under the name of the "other investor"??