Man, Calypso, or Naira (third newspaper).
From all this, I conclude that Naira is a Man, and Zybr was trying to eliminate her unintentionally, pretending to execute her as a Mafia member to avoid suspicion.
It's beneficial for the Mafia to execute a Man, rather than kill him themselves (because the Man has 50% protection, giving him a chance to waste a kill.
4) In the previous day, Zybr kept wanting to execute Naira as Red, even though the chances of her being Mafia are 1%.
In general, logically, Zybr is Mafia with a 90% probability.

Барон "Vampires"
Отдай свои прошлые сны,
В сомненьях себя обрети,
В бешеном танце душа кружится!
Не думай, что будет потом,
Здесь и сейчас мы живем,
Стань хоть на миг сам собой, слышишь!