Its a huge money I think anyone whi has a hard life since 2020 would be tempted to keep the amount to spoil themselves. If he was finding a way to get away with it, he woukd have changed their names and so on.
He knows time will come that he had to pay for it. I think they just have to think of it like the family took a loan.
But how come its a theft?
It landed in his account, if he hired a good lawyer, it will be a battle of good lawyers.