I was so glad to see this thread because I have been thinking about it since the beginning and I have went both ways on this issue. First, I have to say, I don't think ANYONE can know FOR POSITIVE what one would do in a real life circumstance with one's own child and the facts being specific to ones family.
However, I truly put MY child in this case and tried to really feel what it would be like. And I can say with some confidence, as horrible as it is, I may lie to save my child and bring her/him home! (don't throw rocks at me) Just the thought of her rotting in prison would kill me.And being the type of person I am, I would believe oh, I can get her help. I could fix her, as unrealistic as that may be.
Also, I do allow for the fact, that I don't have a grandchild. So, I don't know how that feels to personally compare. I suspect if I had a grandchild who I loved just as dearly as my child and my child murdered her/him, I may feel completely different. I think that may make a huge difference.
I'm going to go back through the thread and read if anyone has a child and a grandchild to see what they feel.
But ya know, as far as ICA, she is the ONLY one who knows what happened. So, if she TRULY wants to save herself, SHE COULD! She wouldn't need anyone else to lie for her. She could simply tell the TRUTH and make a deal to NOT get the DP. So, IMO, she is doing this absolutely 100% HERSELF, if she does get the DP for not telling the whole truth and what happened.