He won't get 20, but for just the gun charges, 36 months at a minimum. Because of his criminal history, and unrepentant behavior prior to his arrest, the judge isn't likely to go easy on him, or be inclined to give him a break. The federal system is based on points, his base offense is serious, and he has a serious criminal background, he'll end up in a USP or a medium level fed prison. It's not over yet, he can do 5 and come home, broke, and hurting, and get back on through whatever the new medium is, in 5 years, or a book, something like that. It's not much, but there will be a chance. He gets indicted on state charges of murder, attempted, anything like that, and he's finished. He'll get out when he's 45 years old, (if he's lucky) and be a stranger in a strange land.