Sami was found not guilty on most charges.
Sami almost for certain was/is not a “good guy“. I think he was in fact working on the side of evil. But one can do that without breaking any law and the court/jury has concluded there was insufficient evidence that he had broken any law. So… he gets a pass (after spending over a year in jail, terminating his schooling, and having his family kicked out of the country). I think he probably has paid a sufficient price for his “sins”. And of course our intelligence agencies will be watching him and everyone he has contact with. He will be essentially useless to our enemies for the forseeable future. I say, send him back to Saudi Arabia and he is unlikely to bother us again.