What I have seen is Casey being very relaxed in implicating a person who is found to have not existed. There are also 2 other people named that have been named and either denied being present or have not been found. Yes, it's possible there was an elaborate kidnapping scheme for an adopted girl no one wanted or the 2 people telling the story that has not been shown to be true at all are involved in her disappearance. Back to the description of Casey being comfortable. That type of comfort comes from not having a living witness to refute their story. Casey has no fear that Erica is going to show up and say Nan doesn't exist or that their story is BS because Casey knows that Erica is not going to show up. Just like Nan, Strawberry, the other girl and baby aren't going to show up. That's why I think Erica is dead. Because no matter what puke Casey spews out, she knows no one can personally say she is lying. No one except Sandy, who no matter the level he participated, will be charged the same as if he participated with it all. So he's staying quiet. If he talks, Casey is caught and will finally shut up. But she knows that only they know what happened and will die with their secrets. Or they will die in prison. No potential living witness, behavior is calm. Sad though, because Erika is probably dead because of Casey's history of violent behavior towards her as documented by her sister. Any diagnosis on her? Any chance Casey has been evaluated? No doubt in my mind there would be multiple diagnosis