Bill the Billionaire has his wealth divided amongst various assets (a portion of it is cash under his mattress, a portion of it is stocks, a portion of it is cryptocurrencies, a portion of it is real estate, a portion of it is Pokemon cards, etc.). The entirety of his wealth was completely lawfully obtained. Also, Bill has essentially no friends/confidants/anyone in his life he can count on.
One day, he goes out and decides to publicly go on a murder spree. Once captured, he obviously gets sentenced to at least life in prison. What happens to all his assets? Is Uncle Sam allowed to just swoop in and take the cash under his mattress? Is Bill allowed to dictate in any way what happens to his wealth? What if Bill wrote a will (perhaps dictating that, upon his death, his son Sonny should inherit all his assets), will that will be followed, or can Uncle Sam rip it in half and do whatever they want?