Dark Brotherhood quest help

SPOILERS*



Ok so I'm up to the part where i have to kill the Gourmet. Yet i cannot kill him without receining a 1000 bounty for "The Reach". Iv'e tried everything!! It's really annoying, the only option i have is to turn into a werewolf. However i had the same problem with the bounty issue in the kill at Markarth with the chief Anton. And i used Werewolf there. But I'll rather not use Werewolf since I'll rather just be stealthy about it and not have people chase me around. The whole reason i like the Dark brotherhood is to try play out as an assassin, not just charge in kill and run.

Really? No one has any advice haha?

Wait till he's sleeping and then dagger him he is usually asleep at 1:00am