What is the date of death? What behavior prior to the date of death constitutes highly reliable evidence of premeditation?
As regards accident, it's but an option, as is manslaughter. There's no need to prove accident, because the burden of proof for either murder one or manslaughter is entirely on the State to prove their case.
LE thinks the date of death was 6/16.
Now that there is a new witness, the time would be placed between about 4 PM, and early evening. I don't remember exactly the time that KC and TonE went to rent videos. But, Caylee was not with them, and TonE did not see Caylee that night.
I don't see a charge of manslaughter filed. And, given the amount and quality of forensic and behavioral evidence after the baby's death, I don't see a jury going for it. Especially if KC still insists an unnamed SODDI. Certainly, KC won't plead manslaughter, or even accident. At least, she has been unwilling to do to this point. Again, her choice.
I don't know what evidence led the state to file murder charges BEFORE the body was found. My guess is that it's pretty significant. And, again, The FBI doesn't generally remain involved in cases that they are not likely to win.
My guess is that the entomologist's report will be very critical.
IMVHO, the state will have an easy time proving its case beyond a reasonable doubt.
I don't think that behaviors prior to the baby's death are important. The fact that the baby died unnaturally in KC's care is indisputable.
However, some people take the computer searches for chloroform, before the death, and for ways to kill as intent. I really don't-- I search a lot of weird stuff, myself.
Thanks, hon!