A few in-game weeks later Letrush starts showing up at Whiterun stables, over and over. What I mean is he shows up there and then another copy of him shows up. So I've heard of this glitch and after I've got four of him I kill them off one by one while the others run back and forth.
A few more in-game weeks go by and there's Letrush again outside the stables (so the cell reset, I can live with it)
The really weird part - When I approch Letrush he moves away from me and says, "No, No, don't hurt me again."
I nearly died laughing....


Seems like Letrush took his precautions concerning Maven, and let a lot of look-alikes wander around Skyrim.
Very funny. I reckon this is the real objective of the game; forget the return of the dragons, it's the Letrush-horde you have to fight before they take over Tamriel.