I think he is alive. I think life got difficult and he needed a breather. I am worried though that he has not contacted his family yet (I think this is because he knows his family now knows about his "secret"), and because of the strangeness of finding the car, etc.
So I'm praying for him. And I know you guys are going to find him. I watch the thread and cheer you on. He can walk if he wants, but he needs to let someone know he is okay. Once he does that, he can have all the breathing room he needs.
And he can't get mad, because what if no one looked for him and some thing did happen?
Salem