Ok, i have dealt with this before (MtGox and PBmining) and recovered ALL the money, you know how? By gathering the biggest investors and pooling with them a REWARD OF 300 BTC for the whereabouts of YOU, YOUR FAMILY AND FRIENDS and another 300 BTC to pay for the people that is going to PAY YOU AND THEM A VISIT.
You are not dealing here with the average guy that invests 0.1 BTC, i represent a group with almost 250.000 shares, value over 250 BTC, I represent the kind of people that it is VERY DANGEROUS to mess with in any part of the world.
So i will offer you an exit: Reimburse our shares for 250 BTC or i will start the process of hunting you and your relatives and friends. You have 24 hours, after that i will start the hunt and i will make it public, so not only you will have to pay the biggest ones, but almost every little guy that sums to the hunt. It is best for you to settle this now than settle it later, check my posts in this forum, I HAVE DONE THIS BEFORE.
Be smart, be like Mark Karpeles and Jason Boyko, they are still good and their relatives too because they acted smart, they kept this private and small and ended up losing less.
You have 24 hours.
IIRC Mr. teal was able to find a ~200 btc transaction that happened right before Airwolf comes out and says this:
https://bitcointalk.org/index.php?topic=887871.msg9811982#msg9811982