Why she might be the killer:
- Her dad is Charles Manson. It could be true that it's in the genes.
- She gives an impassioned speech to Sam about how the people who love her suffer tragic fates. Does she enact her own for Sam?
- Sam saying, "I knew it was you," when she sees the killer points directly at Chanel #3.
Why she might not be the killer:
- She seems genuinely sad that Sam is dead.