Mafia 110. Heckelia

Isn't it a bit odd that the Mafia and the Maniac would benefit the most from executing another Maniac? Should I explain why, or can you figure it out yourself?
The Heroes player acted like a Town member, assuming that the main Mafia member voted for Morninga. The 5 votes signaled that Chinax wasn't among those who voted. And as we know, the Town member isn't afraid of executions, so they had nothing to lose from this action. But if the Heroes player is a Town member, then who is Tox?

Ah, so they were trying to identify Chinax that way? If 7 votes were cast on 5 players, would Chinax be among the four who voted? That didn't occur to me.
But I think it's too greedy to execute a player and check for Chinax at the same time. And they would have had to steal a vote from someone outside of those 4. There would have to be a lot of cunning and coincidences.

The clue was clearly a Berber, and I don't know why Moni immediately identified it as Inara. I'm also Inara, and I also have a Berber. We have a whole city of Inaras here.

It's a paradox. The Negatives should have disbelieved the clue in order to execute Inara. And the Town members should have believed the clue.
Do you think the Heroes player is Mafia, and they didn't believe the Berber clue and started to execute?