Of the many theories discussed here, I don't believe I've seen this one yet.
Does anyone think there is a possibility that KC's original plan was to kill Caylee, and then herself? It would seem like the ultimate gesture to her mother, to take away "both" of her "daughters" in one fell swoop.
By June, she was at the end of her life of lies, people were starting to discover all her thefts, her lies, and her imaginary jobs. Suicide may have looked like the only way out, and there was no way she was leaving her daughter behind to enjoy all the sympathy that CA wasn't giving her real daughter...
But when it came down to it, KC didn't have the nerve to finish herself off too. She decided to start a new life, as if reborn, and pretend her old life didn't exeist anymore. Or simply enjoy the time she had left to the fullest.
This could explain several odd things in the case:
1. KC's exuberant behavior immediately after the murder. If KC felt that she had narrowly avoided death herself, then decided to "live it up" with the time she had left, start a new life.
2. The June 21 diary entry. Could the decision she refers to be the decision to live, rather than the decision to kill her daughter.
3. The odd bits of evidence pointing to Blanchard Park. Was this where people were supposed to find "poor" KC and her daughter dead?
4. The bits of "motivational" songs, pictures, and poems KC was apparently obsessed with in the weeks following the murder. Justifying her decision to stay alive?
5. KC's fatalist determination to never confess in any way. If she view's her daughter's death as an unfortunate side-effect of a failed suicide attempt, then she has no reason to confess. And a confession could incite the death penalty, resulting in the loss of the life she has "chosen" to keep living.
6. The many petty thefts she couldn't possibly hope to cover up forever. Crimes she knew would turn her whole family against her. But didn't care because she wasn't planning on being around for very long.
7. A big bottle of drugs with hypodermic possibly found at dumpsite. If this gatorade bottle contains what most of us our theorizing it does, the substance used to kill Caylee, its obvious that there was plenty left over, a large amount of thick white residue. Enough for two?
8. No evidence of brutal trauma to Caylee's remains, the heart sticker, and the inclusion of favorite toys/blankets/etc in the "burial" packing. These all indicate a "gentle" murder. Quick and clean is the hallmark of murder/suicides, as opposed to the obvious aggression shown in rage murders, or the unintentional damage of covered-up accidents.
I could go on with these for awhile. I'm not even sure I ascribe to the theory, but it could explain alot of odd things in the case.
Anyone have some oddities they've noticed that a failed murder/suicide theory could explain?
Or reasons why this theory is just completely implausible?