Re: What's the point?
The problem with that plan is that, if the money was stolen by someone in connection with his death or he faked the death, all the evidence is in exactly the same place and time, namely the days around the theft and the death, whether fabricated or not. A description of a person might work if you have some idea where that person is and enough details to identify them later on. However, we do not have any good idea where he could be now, and he's had plenty of time to disguise himself. Even without having put a lot of effort into a disguise or obtaining plastic surgery, the generic description of a person as provided for most people would be of no help at all when our search area is the entire planet.
Logically, the best course of action in determining where the money is is to try to track that money. Whether it's him who has it or someone else, they can best be identified by tracking where the money is being spent.
If we know with certainty that it is, in fact, that man who stole the money and faked his death, we will still need to track any accounts that may hold information and those connected to the wallets to find him. If we know with certainty that he is dead and therefore someone else stole the money, our best chance of identifying that person is to check on his accounts for pertinent communications and monitor the accounts connected to the money. Either way, the course of action is the same.