They just found out that KC stole money from her parents and she is going to say there was no fight, ya right.
exactly! Like CA "wouldn't" argue with KC for stealing the grandparents money! You KNOW CA would have been on a sanctimonious high horse about all that in a major way. This is probably really what is key..that CA knows on some level that without that outrageous choking argument Caylee might still be here.
CA HAS to feel responsible, but she really can't clearly face it. I can't even come close to understanding the guilt that she feels deep down. Her tremendous personal guilt is what makes her what to place blame elsewhere.