Who Should Execute Bin Laden?

There are a number of steps to be taken before this question can be answered. (1) Where is he caught (assuming he ever is)? (2) Who catches him? (3) Does the US request extradition, if applicable? (4) If this request is made, is it granted? (5) Is he turned over to New York for trial for multiple murders or tried under US anti-terrorism laws? (6) Is he convicted? (7) Is he sentenced to death?

The rules of law must be followed. This, at least, is a point that is undebateable.