Mafia 41. Rainie-1.

we have four suspects for the role of Kana. These are: Mortulus, Nebo, Zubr, Yasherka, Kosha, and Lorri.

There are 6 here)))

And at first, I thought that Arandor was saved by the commander's amulet. But then, as I understand it, his nickname wouldn't have been written?

It was already written that it describes an unsuccessful assassination. There is no mention of the nickname. If that was the case, then Menta was not healed on the second night, but he survived thanks to his ability. Given his role, this is a quite possible scenario.
You already have a target for execution, why think about it?