I was thinking the same thing. Why would he even think that it was Caylee in the trunk? But then again, DCF was investigating KC of "threatened harm". That might explain it. She may have threatened to hurt the child in the past and her parents knew this but never reported it.
What date was DCF on the case? I thought the police brought them into the case because KC was not cooperating with them.
I'm still reading the transcripts and GA was in fact hoping the smell from the car wasn't Caylee BEFORE he even knew she was missing! Wow!! Who in their right mind would have had such thoughts cross their minds in that same situation before even knowing the child was missing? He must have known his daughter was a psychopath all along who was capable of killing her own child!