This is debatable. One can also argue that he lent 900K to the bank (investment into the bank). The bank failed, so his investment is worthless. Of course he was purposefully lead to believe the bank would merely "safekeep" his money and that it was insured in some way. This is what makes the whole thing fraudulent: the lying and misleading.
It's a sham, not a robbery. They didn't take his money, he gave it to them.
Money in a bank account is not money, just IOUs. The bank owes you. When the bank (the borrower) defaults, your (the investors) IOUs are worthless.
Every business in Western world is
forced to "invest" in banks, even with zero interest.
Failure to do so is punishable as crime. If you run small business and receive cash without depositing it to a bank, you are
criminal.
Entire western legal system is developed in favor of fucking your wallet.This is why I gave up "civilized" life and moved to Caribbean "banana republic". Now I can legally run my IT business offshore using any means of payments in any amounts without any stupid restrictions and taxes. I truly respect my new home country for their loyal financial system. They attracted billions of investments in their economy by being tax haven and giving foreigners ability to run lawful businesses without hassles. They managed to keep their infrastructure in shape without imposing taxes on income from abroad. Local population has free education and medicine, their roads are in perfect conditions. I'm really happy that I left Europe which is now becomes close to fascist state.