Oh, I understood that “is tainted with my coins 1FMkokNtu7oQyjwaYcM5wDQG9VUN4hUBMb” means that this address is yours.
So here's what I think happened.
The destination 14E4jGTvz1Jfbv4bzkDtieTzYA66x9J7GF address is a cold storage of a legitimate business. If it was scam money, there would be more people on the internet asking about this address, yet googling doesn't reveal anyone discussing it, besides that it's on various “bitcoin richest addresses” lists.
There are two transactions between your money and that cold storage.
First the preson you sent coins, sent them to 152NvAmevhFMreBJ5HcoREmUqd86eusLu7:
https://blockchain.info/tx/2d40404eaf6fe5e5c30c0a0cef8f380a405b06f42c9660d987a093825e4394a7?show_adv=trueThen your 1.37 is distributed among other inputs to three addresses, one of which is that big cold storage:
https://blockchain.info/address/152NvAmevhFMreBJ5HcoREmUqd86eusLu7The second transaction seems to be an internal exchange transaction distributing deposited money between hot and cold wallets. No exchange provides cold wallet address for direct deposits. So the first transaction is the only transaction he made with your money - and it's his deposit to the exchange.
Here's when he made a slight mistake - look at the inputs and outputs under the first link above. He used one-time-usage address for the deal with you and wanted to sweep it later to the exchange to mix bitcoins. Had he sent 1.3695, everything would went fine. But he tried to send the full 1.37. When his wallet software asked him if he wants to include 0.0005 fee, because if not, the transaction might wait long for being confirmed, he clicked “yes”. But as there were no coins left in the from address, the wallet automatically included another his address to provide the fee. So you now have his two other addresses exposed in this transaction - one that sent 0.06543086 BTC input to provide the fee and another one that got 0.06493086 BTC change from the 0.0005 BTC fee. Your best luck might be in tracing these two addresses.
It kinda looks that way based on how the address go to another and another and some branch off. Thats alot how MtGox seems to move the coins around.
I have contacted them but they said none of the address I inquired about belonged to them.
I'm not surprised that exchanges don't claim ownership of cold storage address. It's like if you called your bank and asked details about their secure vault storage where they keep their reserves. Do you think they'd happily tell you where they keep them?