Annie even said that she "didn't want to be the one person who knew". And she seemed frightened to me. She could have been referring to knowing that Casey did something, or knowing something else.
Her comment that "Casey couldn't have done this by herself, she's not smart enough" always struck me as strange and I wondered what she meant.
Overall, I have to say I liked Annie more than some of the witnesses. She seemed more distressed about Caylee than some. MOO. I felt for her.
That said, I wasn't sure if Annie was telling everything she knew, and I wonder what we'll hear at trial.
I found some of YM's questions to Annie and some of Casey's other friends to be rather leading. It seemed quite important to YM for Casey's friends and family to believe/agree that Casey was guilty of something, he pressured CA on this point, and Annie and JH for example, getting annoyed when they wouldn't agree. He told some of the witnesses, maybe it was Annie, that he knew for a fact that Casey was guilty and was behind the disappearance, and also the way he told Annie for example, when she was trying to say that Casey would never harm Caylee, he told her that Casey's other friends had said they used to believe that too but that they all mentioned they had noticed she had changed. That was weird, because the other friends actually said that they hadn't noticed any change, she had been acting normal right up to July 15. I never understood that. It was sad seeing how confused Annie and some others were, being bombarded with media stories about Casey being completely different from what they knew her to be, and hearing the same thing from LE and being somewhat pressured to agree. I expected LE to do just the opposite and tell them to state only what they knew firsthand about Casey and Caylee and to try to put out of their minds anything they'd been hearing in the media, etc. MOO and no general criticism of LE, I appreciate them. Anyway, so at trial I guess we'll see if YM really did know for a fact or if he was just referring to a strong suspicion.