Everyone keeps saying Cindy did call the police. Yes, she did, but - listen to what she said, read the myspace comment. She cannot claim she had no idea for the month Caylee was missing that something was wrong. She DID know. The very first 911 call says "no I've given you a month". The myspace comment says clearly "caylee is missing". She may not have had the admission from KC, but she knew KC had stolen, lied and been deceptive before. She DID know something was wrong and she didn't call police.
The biggest piece of mystery to me seems to be overlooked a lot. When the call was made to 911 and Casey got on the phone, she said calmly, my daughter's been missing for 31 days. I haven't seen her for 31 days. Like she had been numbering the days. But, she was claiming at the time she hadn't seen her since June 9th. Several more days than 31. She appears to have made up the 31 days because it fit with the story that it had been a month. I think most mother's would have known the number of weeks, days, hours since they had seen their child. She guessed at it, and was wrong.
I think Cindy only took action on July 15th because that day, it costs them some money to get the car. She had a fit because she thought the tow yard charged too much. She was worried about money, not where are KC and Caylee. No, my opinion has not changed, and it's not likely to. Every single adult that knew this child has apparently ignored her basic need for well-being for their own selfish reasons.