Latest Theory as of January 28th, 2009

In my last theory I put Tony Lazarro in the midst of the mystery. Now with the discovery of Caylee's remains 15 houses down Hopespring Dr. and a few new events, I have come up with a newer version. Note: Today is Jan28,2009. George was hospitalized due to a possible suicide attempt. Yes, George is suicidal. In my last theory I stated it would be Casey that would be found dead in her cell. So it's not Casey who's wearing the guilt, its George. George is guilty but of course he is not the murderer of Caylee. I believe when George was yelling to Richard Grund, "I can't go on living a lie", he was referring to the lie he told LE. This is what I believe took place on the Father's Day weekend.
I'm one of these weird people that happen to think Caylee's death was the result of a semi-accident. I imagine that the night of June 15th, the house was roaring in arguments and yelling. It was just a bad night at the Anthony's.
Casey had just been confronted about stealing Grandma's money and using her parents, perhaps even being told she had to move out as Jesse said in an interview, she had told him. (there is a documented call to Jesse) Anyway, speculating the scenario, I think Casey was trying to get some sleep and Caylee may have been cranky with all of the yelling that had taken place in the house, so Casey gave her Xanax as she always had but this time something went wrong. Maybe the usual dose wasn't working on Caylee, so she gave her more. THIS IS THE LIE GEORGE CAN'T LIVE WITH: I don't think George actually saw Caylee on the 16th, just Casey. Caylee was in the bed sleeping or so he thought.
After he left, then Casey was in panic mode, maybe even burying her in the yard for a day or two. She did make it to Tony's that night the 16th as seen in the video of her and Tony at Blockbusters, but the next day she was back at the Anthony's, it was either the 17th or 18th that she borrowed the shovel and moved her to the trunk. Casey was driving around with Caylee's body. The pings have her near the airport about that time. Since the odor is said to be 2.5 days of decomp, I'd say she finally chose the area closest to the house (in case she had to move it again.) And thats where she was found. There's only one thing that doesn't fit in this theory.
The over kill of the duct tape and heart over the mouth. I think Casey after learning of Nicole Ganguzza's murder decided to make it look like a kidnapping by making the scene grotesque, as to imply a serial killer.
This is just my theory of the week, theory is subject to change upon more evidence.