IMO, The A's were in trouble long before Caylee's murder, if anyone can't see the dysfuntion in that family unit by now, then I would guess those same people would'nt see a snake if it rose up and bit them on the nose. I have a feeling little Caylee was actually the glue that held CA and GA together for the past couple of years. I believe GA thinks he lost everything. He knows he lost his little Caylee, he knows he lost his daughter, and I believe he thinks he lost his wife also. IMO, throughout this whole horrible case, GA has worked very hard emotionally to try and appease CA, and go along with her in the belief that Caylee was still alive, despite what his own personal true feelings were. He has been hanging onto CA by a thread, afraid of losing her too. He pretty much said as much in his recorded statement to LE. Nobody can keep up this kind of facade for any length of time before cracking under their own emotional pressure. MOO of course.
I can see the dysfunction very clearly. However, I don't blame all the problems in the family on CA. I think GA has played a large part in creating the dysfunction in the family. IMO