There’s a lot that doesn’t make sense. I’ve seen a lot of people question where a young person got the money for the weaponry and truck; that one is easy enough to explain: the scenario was portrayed in Midnight in the Garden of Good and Evil. It’s still worth looking into. I’m sure the feds have those kinds of assets.
He used credit cards and essentially stole the truck from someone in his family. He did not even have a driver’s license.