From the very beginning I believed the fight was the point that pushed KC over the edge. The neighbor reported that the fight was loud enough for him to hear. Did the fight go into the drive way? Did it go out to the car? Was it in the backyard? Was it in the garage? How could the neighbors hear it with their air conditioning running (and it would have been going in florida in mid June)? All these questions bothered me and I decided to become a and go by the house. I was surprised at how close the garage side was to the neighbors house. If the neighbors were in their front room and the fight had started in the garage and worked its way into the driveway by KC's vehicle, it would be quite easy for them to hear exactly that something was going on. If the neighbors across the street were sitting in a screened in porch area, they too could have heard the commotion.
I'm thinking that SP pushed CA's explosion button by telling her she was done with KC and was going to press charges for looting her Grandfathers nursing home account. I bet SP used terms like "I'm going to make KC responsible, since you can't", which made CA fume all the way home. Caylee may have sensed anger, since she was probably exposed to alot of it, and acted out. The idea that Caylee may have reacted to CA putting stuff in the trunk is a good one, and one I hadn't thought of. I have always felt that Caylee was in the middle of CA and KC during that fathers day fight and that was how CA allowed Caylee to go with KC that night, if she did.
I can't wait to hear more info on that fight during the trial.