I can't do anything tonight, and I am willing to give the town a night kill of their choosing the next night if I'm kept alive. That's not a bad deal.
I understand that I am the only known guilty suspect at the moment, but I'd be beneficial to you to at least look for others.
Plus, I can only win if I'm the last man standing. Mafia can win simply by killing off enough of everybody else to equal half the remaining number of players. Killing off Mafia should be a priority over killing of Serial Killers, especially a Serial Killer who can't do anything tonight, and who could help you over subsequent nights.
But then, you did vote for me almost immediately after Nordlead's "up to no good" accusation, so you may be in league with him. Best to kill me off quick, eh?