Humorman, Lokking at BK's description, you seem to be incorrect about the mad Hatter :)
With the exception of the mad hatter and godfather, all mafia members can kill once per night cycle
Mad HatterBombs only. ;)
The mad hatter’s special ability is to plant two bombs throughout the whole game on two specific players. He may choose when and who to plant these bombs. Should the mad hatter dies, kaboom! Those whom he planted the bomb to will die as well. If the target dies before you do however, you lose the bomb.
Meanwhile, we have a confirmed mafia to lynch. Time to get your votes in people! ^_^