For trusted status, physical copies of the documents must be sent by mail and they must be certified by an apostille.
It is possible, but why would Mark Karpeles need a MtGox account to move bitcoins? Or could this be Mark's personal account?
I still think it is more likely to be an early adopter who is concerned about being a target now that their private details are being passed around criminals. Or that the criminals already got the bitcoins through coercion at the individuals private residence.
Anyone who has withdrawn thousands of bitcoins from MtGox should split the bitcoins into many different wallets and then send them to another exchange such as btc-e and then withdraw them to encrypted wallets and hide/bury them. This will break trail through the blockchain.