They're actually taking him to court? Seems a bit harsh from where I see it. I remember it happening and it seemed (and still does) as if he's a confused teenager who was trying to be tough. Calling the cops was the right thing to do (as he might've gone through with it, since after scheming it's a slippery slope down) but I honestly thought he'd get off with a slap on the hands and some psychiatric help.
As serious as threats of arson are, he's just a confused kid.