I guess I have to make it a little clear. I can't investigate. I choose one person a night. That person can't be targeted by anything. Also, if that person has a night role they're unable to perform it. I'm not told any thing about the person. It's not like I can investigate.
The first night I chose Gnizmo and there were no killings that night. That led me to believe that the mafia chose Gnizmo aswel and failed because of me. The second night, I chose him again. There was only one murder that night [not two which would indicated mafia and serial killer]. Which is why I said earlier that if there is a serial killer, it's Gnizmo... but now I'm not so sure there even is one.
Also they way that insomniac died... I just thought that the mafia just tried really hard after failing for some unexplained reason the first night. Perhaps they sent all 3 of their goons on night 2 instead of just one.
4 ≈ One