I've been where you are Sherril, giving and giving and giving. My daughter acted in the exact same way your son acted, ungrateful, rude, disrespectful, angry, blaming, manipulative, really, a jerk. But I kept showing up and giving more because "I was all she had. Her husband committed suicide, her children were taken away, she lost everything".........on and on my litany of excuses for her behavior went, and on and on my relentless giving went........and on and on her bad behavior went. Until I stopped. I stopped giving. I set strong boundaries. I insisted on being treated well and if I wasn't I hung up or stayed away and told her I would no longer tolerate that abuse, that disrespect. She was angry. And, after awhile, it changed. I didn't expect it to, and I don't believe one should set boundaries and demand respect for a desired outcome, but to do it because no one deserves to be treated that way and I wasn't going to put up with it anymore. Your son may or may not change, but you certainly don't deserve to be treated that way. Your son is acting badly.
It was without a doubt the hardest thing I have ever been through. If you want your son to change, you are going to have to be the one who does all the changing, he won't. He's already been allowed to act this way. By you. When you stop allowing it, that's when it will change. Either he will change, or he will exit out of your sphere because he refuses to stop being a jerk. Either way, you will gain back your life, your respect and your peace of mind.
He is holding you hostage with his behavior. Nothing you do is going to meet his entitled ways. You might consider letting the attorney go and allowing the pieces to fall where they may. If your son threatens suicide, call the authorities at the jail, he will soon stop doing that. Many of our troubled kids threaten us with killing themselves, starving to death, freezing to death, being unsafe, whatever, but of course, the one thing they fail to realize is THEY put themselves in these situations, not us. But they often insist that we remove them from the consequences of their behavior. Doing that for them is ripping them off of learning the lesson. That is how we learn, by facing the consequences. Your son is learning how to manipulate not how to grow from this experience.
Do you think your son will learn any kind of lesson if you bail him out? Possession of a concealed weapon is a serious offense. Grand Larceny as a juvenile? It may be time to step back and allow the pieces to fall where they may. His ungrateful behavior and hanging up on you and threatening you with suicide is over the top in bad behavior.
Give it some serious thought as to how to proceed. Letting him face his consequences is not abandoning him, you're still there, just allowing him to know that he can't do illegal things and get off, he has to pay a price for it, or he WILL do it again.
I'm sorry you're going through this. I do know how hard it is. Do what feels right to you, but consider all your options.