Ideally proceeds from a bank robbery would be removed from the estate. From a purely practical standpoint, once the estate is settled, it should stay settled and no one should be forced to answer for the actions of another adult.
This is just a declaration, not an argument. Under what argument (that also doesn't apply to this) would those proceeds be removed from the estate, and when should an estate be "settled."
If somebody sells me a television they burgled from your house, I'd consider the transaction settled once the exchange was made and we'd parted ways. You would probably disagree.
Knowingly buying stolen property is illegal and may result in jail time.
Unknowingly buying stolen property still comes with a risk that if LE ever find it, they can take it away from you without compensating you.
I had my TV stolen and sold to a pawn shop. Detectives found it at local pawn shop and they recovered it for me. These laws exist so that when one is engaged in business, they have to do reasonable due diligence that they are not dealing with stolen or illegal goods.