spitz began to try and saw caylee anthony's skull opened. >> i tried to open it. i worked on it for two hours. i cannot open it. i said, you see, i cannot open it. this thing doesn't cut. i get you a saw. >> this had to get done and it had to get done by daylight. i said, i'll go get you a saw. i went to walmart at 3:00 in the morning to buy a saw to saw open caylee anthony's skull because the medical examiner didn't do it. as i'm walking around, people are recognizing me, i'm sure somebody had to be scratching their heads on that one. and then i remember getting up to the cash register and every tabloid newspaper had caylee and casey right there and here i am with a saw paying $4.99 at the walmart at 3:00 in the morning. >> he came back about half hour later and he brought a saw. it took maybe five minutes. to not have opened it, it was a failure. it indicates the shoddiness of the autopsy, the lack of curiosity. you don't leave any stone unturned. >> the orange county medical examiner, be dr. jan garavaglia testified she did not open the child's skull during her