I think the best we'll see from them is the partial truth. The jury will never know the extent of the A's obstructive efforts from 2008 on (at least I doubt that they will hear much of it if anything).
I believe the bottom line is that there is an awful lot of uncertainty as to what actually happened. CA has known for many years that ICA is a chronic liar and thief, but I do not believe her own narcissistic personality can accept the poor reflection that a murderer among her children would cast upon her. GA seems potentially more able to deal with the reality and does appear somewhat broken by that realization. LA is very much aware of ICA's bad behavior, but he has also received a good deal of his information filtered through his mother, who, like ICA, tends to wallow in victimhood when it suits her. I do not believe he is certain of what happened, but like his mother, probably prefers to imagine that it was simply an accident and ICA has dealt with it in her customarily self-serving and destructive manner.
To seek "truth" from this family is to presume they are clear on what that is. I am well aware of the endless speculation as to their involvement in the immediate aftermath of the event -- WS'ers have been positing theories since 2008 involving potential family involvement, particularly with regard to disposal of the body. However, I honestly believe that at this point only ICA knows what actually happened. I do, of course, believe that they all know that she knows.
As the jailhouse tapes played in open court this week and we relived the pathetic spectacle of GA and CA desperately staring at a monster hoping for the smallest piece of information, I was reminded of a Twilight Zone episode from many years past (dating myself here, and forgive me if the reference is obscure). The episode, entitled "It's a Good Life", starred Bill Mumy as a young boy who had the power to make anything he wished come true. As a consequence, his parents and everyone in town lived in mortal terror of him, as he had a nasty habit of "wishing people away into the cornfield," or turning them into all sorts of bizarre things. Thus, the adults in the episode tip-toed around him, terrified to incur his narcissistic wrath. Even today, it remains a powerful, well-acted episode.
I watched that episode the other night after seeing those videos again. It was all the more evocative as I realized that the terror on ICA's parents' faces was real, not simply well-acted for the sake of a teledrama. If I have a reason for saying what I've said here, it is that I cannot fathom that these people willingly sought to help that monster they sit before in those images, fully cognizant that she had actually murdered their grandchild. As unpalatable as the family could be at times these past years, I genuinely believe they had hope there was some truth to ICA's lies, right up to the moment poor Caylee's body was discovered.
I don't think they really want to know, or could accept, the truth about their daughter now.
MOO