Truman got himself caught up with Sarah Newlin and that's never a good thing. His daughter Willa was turned into a vamp; first he supported her and then turned on her. While questioning Truman about Vamp Camp, Bill bit off his head. Good riddance to bad government.
Let's be honest, this was another of those plots that just didn't work. An annoying witch trying to kill our heroes? I think not. In a bizarre SWAT-like standoff (with Vamps as SWAT) Marnie was thankfully put out of her misery. Abandoned by her followers and viewers.