I'm pretty sure there was an extra block found that wasn't credited. I don't have the data in front of me, but I noticed that on the statistics page it shows who found the last block. A week or two ago it changed  from one user to another but the shares and everything else just kept going like nothing happened. Then just a few days ago the stats changed to say that the last block was found after something like 12 shares.  There was no credit for it, or the previous block.

Also, the bit about how his partner has an encrypted cold wallet and he has the key doesn't make much sense to me. Whenever you need to move money from the cold wallet somebody has to have both the key and the wallet together and they can just keep a copy of both obviously.