Originally Posted by 09beyoncefan:
“I feel like she went for the likes of Ashley, Will and even Diane on a lesser scale for the "god complex" thing, she was ridding the world of evil people. The ones I really don't understand are Phoebe and Dylan, plus her attempting killing of Esther but I think by that point she was just after the adrenaline rush of toying with lives, deciding lives and dies. The attempt on Diane I do understand, because she was being selfish and hurt Tegan who is Lindsey's friend, that's a bit more of a motive.”
I think she went after Phoebe because Joe had the gun that shot her and she was maybe worried he'd go to prison because when she was concious she said it was Grace that had it but she was killed before she could speak properly, although I can't remember if Lindsay found out about the gun.
Dylan I would imagine was to hurt Trevor over the Roscoe feud.
Either way no matter what, killing so many people I don't think someone like that really needs a motive, they're just power mad or something.