Doing script kiddy-ish things to his email account and internet connection does nothing constructive.
Best to just make sure this crap doesn't happen again and move on. Stop wasting valuable flaming time.. er.. discussion time on someone who prob loves the attention.
Though submitting info to the FBI prob couldn't hurt. At least there'd be some sort of record of activity. Dunno if that'd have any affect though.
__________________
--------
jam^
--------
|