The better question was who did?

[ No, this was not the time. But, Elizabeth muses to herself. ]

People had problems with her treatment of the results - Bigby and myself certainly had our issues with her. Possibly Adam since Luke was - ... well, you know.

[ But, she didn't see Adam confront the woman. ]

Why do you believe someone else had done this? Two murder attempts and neither of them are staff? I don't feel like that's likely.