are you sure? I thought they just caught the guy in a library with one of his entire wallets and they are still missing tons of money.The FBI seemed to cut right through tumblers when making SR busts. if you put enough man hours in, you can find the entrance and the exit, it's just really annoying. Should only get easier to do that in the future.
how would they make the connection? What comes out of coin fog is nothing like what went in. you would have to just amount match, there is no other common factor.