July 3rd...interesting date.
It seems to be here that the worry, if you go by the phone calls/texts, escalates dramatically. Casey calls Cindy to get her to go to Universal, so that Casey can get in the house...tells Cindy what, IDK, but succeeds in getting her out of the home. The calls are constant, all day and night from Cindy to Casey. It has been theorized that Cindy was the one that called Casey and told her Lee was coming for her that night. They were doing some heavy texting right before this. SO, we can definitely say that on July 3rd the family knew Casey was not in Jacksonville, she was in Orlando. Lee says this in his depo "no you're not in Jacksonville, you're in Orlando" to Casey that night. Was it on the 3rd that they realized something was wrong ? Why all of a sudden are they so concerned ?
I think Cindy became concerned because it was the day before the 4th of July. Cindy couldn't imagine spending "Firework Day" without Caylee. Nobody works on July 4 so KC's story became a whole lot more suspicious.
Obviously KC knew Cindy was trying to track her down. That is why KC texted Jesse and told him not to talk to Cindy.
No, I don't think Cindy had a clue that Caylee was in actual danger. But, at this point she was frantic to bring the spitefulness to an end without doing something to cause KC further anger. KC had legal custody. KC was not breaking any law by keeping the child SHE had custody of away from her mother. If Cindy had called LE and Caylee was fine, and Cindy had every reason to think she would be, what would Cindy's chances have been of seeing Caylee in the future?
This was not the first time KC had taken Caylee away for a few days. She'd taken Caylee away from Cindy part of the previous week before June 16 bringing Caylee along when she hung out with Tony during the day and Ricardo at night. However, KC returned with Caylee in plenty of time to have a babysitter for Hip Hop night @ Fusian on June 13. KC was telling Cindy every day she was coming home the same night or the next day. By July 4, Cindy was frayed and impatient but this wasn't the first time they'd battled and KC had taken Caylee away and then Cindy and KC made nice and both resolved to do better (IMO).
IIRC Cindy said in one interview a couple of weeks before July 15, she'd threatened to report the Sunfire stolen. That's when KC came up with having to work in Jacksonville with Jeff. After that the Sunfire was broken down in Jacksonville and in the shop.
I don't believe Cindy thought it was fine and was ok with KC having Caylee for 31 days. I think she was threatening, trying to guilt, begging, placating, sucking up and using all of the tactics that had worked in the past to get her hands back on Caylee. But, she didn't suspect Caylee was dead.
JMO