It sucks that their tax burden is going to be higher on account of making all this money in a single year, putting almost all of it in the highest brackets. Unless they did some clever accounting tricks throughout the 20 years to prepare for this situation, which I highly doubt they did.
I don't know where he lives, but in California it could easily add up to close to 50% since he's "rich".
I don't know where he lives, but in California it could easily add up to close to 50% since he's "rich".