I find the following players suspicious: Vegtam, primarily because of his behavior in the game...
Second, Arandor, but only based on his behavior (I agree with everything Slonysh said in her post – that's what I'm basing my opinion on). But there's no direct evidence against him, so I'll wait before voting against him.
Initially, I also suspected Slonysh herself, but she gradually cleared up those suspicions through her gameplay...
Next, I'm not sure if Maurinho is a Mafia member, but he's acting strangely... Gur and Koteiko also seem suspicious to me.
And I'm absolutely sure about our good guys: Happy, Dariel, and Ney.

I think I've explained everything... Now, who should we execute? I need to think about it.