Im doing the quest Hide and Seek again... where you have to kill the vampire masquerading as a citizen/pilgrim/advisor... this time hes an advisor and im having trouble killing him without alerting the authorities... i cant speak to him and lead him away, and where ever he goes around Morthal Inn theres always someone looking at me...

I have attacked him with a crossbow from the shadows, but when he gets up to fight i let Serana do the work but after she kills him i still get the 1000 bounty for murder... im on master and im not a stealth character so even if i could get in a position where i can attack with my blades and get the stealth bonus, i doubt it would kill him anyway, and then Serana would have to pick him off again and i would STILL get the bounty... sigh.

Anyone else having troubles like this?

EDIT: Nevermind... i sneak hit him with the crossbow, let Serana do ALL the work (i didnt help take his health down at all) and when she killed him i didnt get the bounty... sweet cakes.