We all know those bandits in and outside Bleak Falls Barrow, well just now as I was going through on a new character (CWO you know), and a thought occurred to me about them, and why they was there.
This might be common knowledge as it is blindingly obvious when you look at the facts the game presents us with, but I have never seen anyone else mention it before, I'm not the most active, but I lurk a bit.
Anyway, here is my theory.
Delphine hired them to rob Lucan's shop of the Golden Claw to gain access to the Dragonstone?
She lives local and will probably have seen it displayed in his shop.
She knows a fair bit about dragon culture.
Farengar mentions that a good source told him it was there, this turns out to be Delphine when you drop it off to him.
Then again saying that I just remembered about his journal, and it doesn't really mention anything, so, I guess this was useless haha.
What do you guys think anyway? Seeing as I already typed this up, might as well see what others think.