"night 1 - we know who the cop is, the doctor protects the cop. No kill. Poor choice by the mafia."
That reminds me. It's likely that the mafia went for Gnizmo the other night and couldn't kill him because of me [like how I protected you last night]. I really don't think the mafia would be stupid enough to go for the cop.
For now, because of this I'm gonna assume Gnizmo isn't mafia.
That leaves vette and invisible.... [i don't suspect scifi much...]
4 ≈ One