I clicked through one path which ended up on the same address as above already posted: 1P3S1grZYmcqYDuaEDVDYobJ5Fx85E9fE9 with 50K where very small BTC amounts are still put onto, but never taken away. If that were an MTGOX address, BTC would still be there. If you said - you forgot the keys - get convicted and after a certain amount of years miraculously find the key again - you're deadly rich and already served your penalty.
Except since this "miracle" is nothing more than a fraud, you've committed a whole other crime, and fraud tolls the statute of limitations. You are still not entitled to keep the money, and can be imprisoned indefinitely under civil contempt until you disgorge the funds.