Mafia

Yee-haaaa! EvilGuy01613, you are the Cowboy. Your family has a long line of gun ownership, so you've inherited your father's gun Big Poppa, your grandfather's gun Paradox and your great-grandfather's gun Old Faithful. You can only shoot each one once because you forgot to get more bullets on your way to vegas.

However, you were always a quick draw. You can shoot your guns at any time in the day or night, including at the same time. Whoever you kill will drop dead before any other actions other than doctor saves (hey those guys are pretty good).

And bear in mind you can't take a kill back! It gets locked in place.

You can totally kill despite the actions of the Corrupt Mayor though. You always had some beef with that guy so you don't mind going vigilante when you need to.

But hey, you need to clean them reaaaaaal good first, so no killing before Night 1!