As far as I know, he hasn't been convicted of any crime yet, and may well not be.
Do you get the impression that our entire criminal justice system is run by complete idiots from the guys who sweep the floors all the way up to the United States Supreme Court?
Actually, I believe that the State of CA tried Karr in absentia for the child porn charges, and they still want him for that as well as "fugitive from justice" type charges.