Indeed, we cannot be certain that there is a SK in play. The only information I have is that there has been at least two night kills for most of the nights so far - what I am assuming is a mafia kill, and then a mystery third party killer. Any one of us could be the third party killer, and that includes Cid.
It'd be silly for me to say that Cid is definitely a SK/whatevs, I have no proof of that, all I am saying is that we can't clear Cid as innocent at this point, and it would be silly to disregard him from our suspect lists.
So, two confirmed town voted for Biggs, that makes the rest of you town too? Nope, not buying it. You are right though, it wasn't a mafia ploy. The mafia can very easily take advantage of the disorganisation of the town in situations like those and throw in a few votes with little thought. After all, the town will be claiming to have gotten "caught up in the moment", so the mafia can pull that same excuse.
You also asked us to not read too much into the votes yesterday. Why is that? The lynch being a crazy thing started by Psy is not a good enough excuse to disregard your (and Luneth's) only vote of the game.You're not giving me good vibes here, man.