I think mafia´s plan was for Evans to survive, getting credit for CP´s lynch and to unlick that Massacre ability, so I would not be surprised if he was also making a case on Vinegar if she was her teammate, so that Evans and the 5th mafia member can push through. Vinegar was suspicious to me from D1 on already and others noticed too, sho she wasn´t much more safe than Craig. This makes me think that at least the 5th member of their team is more likely to be someone who hasn´t been under too much pressure so far. That´s another reason why I think that Ekko is more likely to be town btw.