Mafia 60. Nonsense, mayhem, and a few artifacts.

I simply have 3 roles in Vischa. And only one of them is peaceful.

Yeah, I thought about it a bit and I think I understand where you're coming from. If we make one assumption, then it's true that I only have one peaceful role left, and I can't definitively prove that I am that role. Of course, you could block me to check – I don't think it would cause much harm, although it probably wouldn't be very helpful either.
As for Arandor, I think he's trustworthy – based purely on the newspapers. Although someone else might have more information about him...
And yes, if we're going to trust the note, I would execute Saba. But I won't rush into it just yet.