I figured that since votes were being cast against Mental at the last moment, he must be the Mafia, and they were trying to save him. So I cast my vote to ensure he was executed. They should have thanked me for getting rid of the Enchanter instead :).
ROUND 3. Execute Drakkosha.
And the Serial Killer isn't beneficial to the Mafia; even in this kind of game, they might be more helpful to the Town.

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!