Well, the night events blow my plan out of the water, but there is a chance I might spark some thought in someone else:
Early last round, there was a quick pileup on Rikku for being annoying; Now, from a townie's perspective, it doesn't really matter who gets lynched in the absence of any evidence, since someone had to get killed by the town. Why, then, would a townie jump to another player's defence? It's an unspockulatory move, since there's no logical reason to do so, only an emotional one. If Rikku was mafia, though, it would be smart for other mafia members, who know each other, to try to prevent her from being lynched.
The problem is that it was Laguna who started the argument against voting for Rikku, and he's a townie.
Thought the second:
Here we are on Day 2 with nothing but circumstantial evidence. Well, here's some more: Who could be confident of having something to go on at the start of Day 2? Only the cop. Even with a failed investigation, the cop would know there was someone trustworthy.
Now, put yourself in the position of the mafia. Imagine that you and you alone have to make decisions for the mafia. Who would you have killed? What did Laguna do or say that would make him look dangerous to the mafia? smurf all. No, if I were making decisions for the mafia, I'd go after the one person who's given any indication, however subtle, that he may be the cop.
No hit was placed on Cid.
So, it is safe to say that Cid is not the cop. What purpose would a townie have in trying to plant a red herring? To get killed in round 1? I think not. However, a Mafioso could easily try to plant the "I'm a cop" notion in the heads of the townies, knowing that he is safe from being taken out by the Mafia.
##Vote: Cid