something is really fishy about this story.
I'm not convinced you own this bitgo account.
Coins in this wallet originally came from a tumbler so there might definitely be more to this story, I'll look into the origin of the coins a bit more.
right, what are the odds that someone tried to double spend to HIM while HE wants to move essentially 100% of his bitcoins to another wallet?
How much you want to bet that whatever was sent FROM 1Em66 to him is the exact difference between 3Mihy and 2.9btc?