looks like there's two more transactions that paid abnormal amount of fee recently. found this at reddit.
https://blockchain.info/tx/c6f9ae3d4e6c895594628a28a53e9c8436a8ba1aaf5f0dd1711ac2a3f4b893c6
https://blockchain.info/tx/15ccae9f8b2b4e554be12411b83624e8743244e95b7116447a7dde9a39fd2cbe

both have 4BTC fee. received by blockchain one minute apart. if it's the same guy then they lost 23.5BTC.