He does look nervous. Any chance that is because he is calling out the NFL and realizes that even though he is Innocent he still is taking a major risk by calling out the hand that feeds him. He is only suspended for a few games.
Hargrove and Vilma possibly will lose their careers. I agree that for the 4 players (and even coaches) it most likely has more to do with reputation than playing - and it should. No one ever should be accused with out a legitimate attempt to clear their name. Not this farce of a game that the NFL is playing.