Assuming he was “clean” of any wrong doing he can probably move on and try to live a life out of the shadows. I’d bet his Dad or someone in his family set him up with a good chunk of cash from anything like actual green backs being stashed somewhere to one of these complicated trust things to offshore or Swiss bank accounts. It might not set him up for life, but he’s not going to be going to a welfare office for benefits.
Buster would need to get out of the Carolinas. Shave his head to get rid of that easily identifiable red hair, wear a ball cap everywhere, and get on a rapid weight loss regimen. Move to a big city where he can blend in and where people won’t know you from the next guy or gal standing next you. He should consider going by his real name assuming Buster is a nickname and maybe modify his last name by legal means such as going from Murdaugh to Murdock or something like that.
Having said that I doubt all the shoes have dropped in this tangled web.