I'm going to be honest here, I don't know that I can pass judgment on Richie anymore. I have seen and heard much worse between friends, and if Richie truly felt that Jon was his friend, I do not believe he is the huge villain he is being portrayed as.
Is he a man with serious mental problems? YES. He is on medication for them, in fact. Is he a guy with anger control issues? YES. Is he a guy from a, shall we say, blue collar background who probably doesn't understand where all the lines are that he's crossing? YES.
But I can't help but think he HONESTLY thought he was Jon Martin's friend and that that's how a lot of these guys joke with their friends. Construction workers and athletes... I'm sorry, guys do talk like that. When I first heard that Richie had threatened Jon's parents, I was really upset, I thought it was some real raving psycho ****, but that transcript? I could definitely see that as him joking around