No immunity for any of them, period! The 'conflicting' information that C & G gave LE was meant to obstruct the investigation, and was not stated out of stress. There was no confusion in CA's interviews, her intent was to control the investigators. Remember when she was asked about her credit card bills? She told LE she looked at them and there was nothing there, not which ones do you need or i'll get them to you ASAP.
Cindy has told way too many lies to LE to get immunity.
A previous poster brought up the fact that she blurted out on the stand during the hearing that there was no evidence. Ha, how would she know? This, in itself, indicates that she knows way more than she wants the world and the court to believe. Even during those first few days, starting with the 911 calls, her behavior indicated that she was all about manipulation and she admitted that she would say whatever was necessary to get LE to react in the manner she desired. She amped herself into a frenzy when the 1st 911 dispatcher didn't send LE immediately to her home, even tho she only stated, as an after thought, that her granddaughter might be missing. The car issue was a smoke screen, and her first attempt to manipulate LE and Casey.
She's continued for 6 months to use the same techniques.
As for George, I believe he did lie about the 16th. He never saw Casey or Caylee.
His early interviews with LE show he was worried that the truth was being kept from him.
He knew better and tried to smooth things over with LE, but he probably figured by being a bit truthful he could garner inside information.
The other point that I think really is an indicator that the A's have far more knowledge
about what really happened is Casey's jailhouse comment to Cindy: "You don't know what my involvement in this is?" Casey didn't mean that Cindy was innocent of knowledge about what happened. Her tone was way too snide, and she was way too
PO'd that Cindy was being a media star. Someone was unhappy about going this alone.
I say that everything the A's have already said sticks. There is no do over when it comes to murder, whether you actually did it or are an accomplice.