I entirely believe we have one mafia left, assuming Ford or Diesel (double checking now, wasn't he added as well?) isn't mafia. If Ford or Diesel is mafia the complexion of this game could be different, there could be 5 mafia, because mafia could've been added. I don't believe the game would START with 5 mafia and a psycho. Far too stacked against the town.

So, if Diesel and Ford aren't mafia, then we know there's one left, which means we get into a situation that is Bruce, Sam, and one more player as long as you two protect yourselves nightly. brb checking when Diesel was added.