If the jury believes that Casey placed the duct tape on Caylee's face before Caylee was dead, that would show premeditation.
If the jury believes that Casey used chloroform on Caylee, that would show premeditation because of the Google searches for chloroform a couple of months earlier.
The fact that Casey was NOT SAD AT ALL after Caylee was dead suggests premeditation.
As for the journal, AFAIK there is no good evidence that the entry was written in 2008.
DNA and fingerprints would not help show premeditation at all.
1. I doubt it. This option is too unbelievable.
2. No. I think they will say she acted strangely during the 31 days because of a mental problem (perhaps PTSD, perhaps something else), but that the strange behavior followed the ACCIDENTAL death of Caylee from some cause that cannot be blamed on Casey.
Correct. But normally there is an exception for the victim's "next of kin." Assuming Cindy would qualify as "next of kin" (a big assumption IMO), she would normally be allowed to stay for the entire trial even if she were also a witness. But in this case, IMO HHJP has some concerns about treating the As as "next of kin," in part due to the fact that their credibility is important to the case and they seem unable to keep their stories straight, and in part due to the fact that they cannot keep their emotions to themselves within the courtroom.
Yes, he can still issue one; no, he does not have to wait for anyone to ask.