Aldrin and Atavian
Barvasi grins. "Now now, my dear little demi-human, would I be much of an information broker if I revealed to you how I get my information?
And you insult me: the fact that I know does not mean other do! My talents ensure that I know much that others do not!
But if it appeases your worried little mind, I will say that I have not claimed the reward for two reasons: first, it's bad for business to be implicated in this sort of thing. My associates would never do business with me again for fear that I might turn witness against them. Second: because it seems dubious to me that, were I to march up to the Castle, anyone would believe that I had not gained my knowledge from involvement in the crime itself. And I assure you, execution is not my preferred reward! So there you have it."