Hmm...
On the top of the "game on" email that I received from Winston it lists who the recipients are of this email:
ash88, landlubber, Tboy, Tegvtec, Tic0
Now, since I am a townie, and given the way the game is structured/run, and given that not every name is on this list (only half of them are) I think it's a fairly safe assumption that this is a list of my fellow Townies. My fellow townies can verify this by looking at the same list on their email from Winston.
That being the case, I deduce that those who are in the mafia would have received a different email with different instructions. Those people would be: mgsmuhammed, Caledorn, Hercules90, slaze, and Umarth. These are the Mafia.
Elementary, my dear Winston
Now was the fact that I can see the list of people an email went to overlooked? I would suggest that my fellow townies and I start at the top (sorry mgsmuhammed!) and work our way through this list.
That said, as the most vocal confirmed townie I expect the mafia will off me first. But keep strong! We have the list! Besides, if I'm killed first take it as further confirmation!