[Steve]

He has admitted doing it so yes he is a criminal.

I think that since he is aware of the crime, aware of the country that the computers were in and is obviously smart enough to understand what he was doing then he should be tried under that countries laws and if convicted, be made to carry out that countries punishment.

A crime is still a crime even if nobody was hurt. If you break the laws (and in this case do so knowingly) then I have very little sympathy and fully support that he should be tried and carry out any court set punishments if convicted.