and why are you looking for clues on Mana?
And one more thing: If the Winner was a Baron, then the Cop wasn't any kind of Mafia member; no Mafia role would suit him. In that case, he was most likely a Serial Killer, or more precisely, a Sorcerer.
Ziro, explain to me why you're planning to execute Delirius if her role is as well-known as Koshin's? Or is she (Delirius) deceiving us and just pretending to be that role?

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!