He won’t get too much time if he is brought back to the US. Judging by his AGE and naturally what he has done since this incident. If there is a pattern of behavior as such as what he is charged with in the US (habitual offender). Then that would be the only way I see him doing any substantial amount of time behind bars. They are only doing this to him since the high profile nature of the case and of what he was when the crime was committed. If anything he will be used as the new "example" of what NOT to do in Hollywood.