So you suggest it is browneman?http://bitcointalk.org/index.php?topic=6184.0
You should be really sure about it, he may have used the service and got tainted coins. I have been searching for an output from his service with the same input, or smaller if he paid fees, to be 90% sure it is someone.
Actually I used the service and got no coins back. I didn't see an accusation there, not that it matters too much since this is a throwaway address made just to talk about issues like this. Wasting your time on me.
That address that was "Traced" to is the tumbler wallet address, you can get that from their about page: http://lbrmvt4plqojaulx.onion/
It does not appear to be the case though...as the balance to that address is under 400 btc.
You need to follow the sends from there to see where they end up. Each order can have up to 9 output addresses, but they could have used multiple orders. The tumbler makes a lot of change and moves individual bits of change around, making it very hard to follow...but any address that loops back to that one is NOT an output address.
That said, it also wouldn't be hard to chain orders...whcih would cause loops back through that address. No envy here, thats going to be a bitch of a job but, honestly, unless the tumbler is being used by multiple people, or has enough coins in it already to cover an order, then its not very good. Such a large order should be a bitch to trace but, not impossible. Just follow sends within the right time frame and the majority should end up in addresses owned by your thief.
Of course, then you need him to slip up and make a connection to those addresses.