if coins arent returned till end of this week we have to make some group official paper, and ask for domain seizure, and sen it to some court, or anything,
I think there is a very simple thing to put him in a corner:
Everybody, so that is worldwide in this cryptoworld, go to the police and make it official you have been robbed.
OK if only a few persons do it it is nothing, but if a lot people do it worldwide, there might be a big chance that at airports / bordercrossings etc etc they will get a message in their system as soon as his name shows up.
Then slowly the ball gets rolling.
And in this case i hope they catch him in a country somewhere in asia.