Perhaps her intent is to be a hostile witness and not help the Crown out because maybe her lawyer tried to make a plea deal with the Crown and they wouldn't accept any deal. Again, maybe she knows her goose is cooked based on evidence, there's no chance of her getting off of her accessory after the fact charge. She is pretty certain she is going to prison through her own trial, so now she is now going for the glory of being a very memorable shining star during TB's trial. JMO.
Most of the hard evidence in this case involves phone and text messages. If there were any hard evidence against CN, it would more than likely be in the form of a text and it would specifically detail her participation. If such messages do exist, I think we would have heard about them today. I think they've got squat on CN and it wouldn't surprise me if the charges against her are withdrawn. I've said from the beginning that those charges were an attempt to coerce her to testify against somebody that she didn't want to testify against.