""In the United States, one is supposed to be innocent until proven guilty. One does NOT have to prove innocence to be found "not guilty". I don't know if he's guilty or innocent, just that the trial was a mockery.""

The operative consideration is "you are considered innocent until proven guilty, by a court of law". Once a court determines you are guilty of an offense(rightly or wrongly determined)in a legal proceeding, the ball is more in the court of the person found guilty, not the governments, to prove that they are not guilty in that there was an error in the legal proceeding, or new evidence has been found (that was not considered in the legal proceeding.

Can anyone point to a case where an international legal body successfully overturned a legal court ruling of this type in any country? I ask that to clearify if this is an actual legal recourse, or just based on internet chatter.