While I personally have not seen enough to think Terri is guilty, something in me tells me that LE must know something crucial as I have never seen such an all-out "assault" on a person like this before, that I can recall. At least in those cases with false confessions, i.e. Kevin Fox, he did confess, however wrongly. Here, we seem to have a woman with her morning pretty much accounted for, as far as the initial crucial hour or two, no known motive, no physical evidence, etc...and yet there is no doubt that LE has latched onto Terri and is not letting go. There has to be something more than failed LD's and the nebulous MFH allegations, and a mother's intuition. But what??
I've gone through this list myself, especially as it relates to Kyron's case. I tend to block out the MFH plot. I have no idea whether it's true or not, but it tends to muddy the waters in terms of evidence directly related to this case, so I block it out a lot of times when I'm analyzing.
We know Terri and Kyron attended the Science Fair that morning.
We know Terri left sometime prior to 9:00 a.m.
We know LE does not have a murder scene, evidence of a murder scene, evidence of a murder weapon, forensic evidence a murder occurred, or any circumstantial or forensic evidence that points to Kyron's death.
We know Terri has not confessed.
We know Dede has not confessed.
We know Terri was telling the truth about how she spent at least part of her morning (per Andrea and labeled LE photos from the FM parking lot).
We know baby K was with Terri for at least part of the morning (per Andrea at FM).
We know Terri was home around 1:00 p.m. and posting on Facebook.
We know when Kaine came home, he stated nothing was amiss.
In my very strong but humble opinion, I do not believe LE has witnesses that place Kyron outside the school in, around, or near Terri's truck when she was leaving. I don't believe anyone saw him leave with her. If that was the case, all the questionnaires would be unnecessary, IMHO.
So, IMHO, LE doesn't have a witness who saw Kyron leave with Terri, part of Terri's day has been corroborated by an independent witness, and there is no evidence of a murder, murder scene, murder weapon, or that any death has occurred.
If LE has no evidence Kyron is not alive, even if they believe he is not alive, then they must not have any evidence, circumstantial or otherwise, IMHO, that points to his death.
Even when Terri was sexting Michael Cook, she said she missed her kids. She told another friend she wanted Kyron to come home. Her texts aren't filled with evidence that directly implicates her in Kyron's disappearance, even if her sexting is completely inappropriate and self-destructive.
What do they have? Questionable Internet searches? IMHO, if Terri was researching ways in which to kill someone or something that pointed to how or why she may have killed Kyron, that would register in the evidence category as to whether or not Kyron is alive. I don't believe LE would continue to assert that there is "no evidence" he is not alive, if there was even circumstantial evidence on Terri's computer.
IMHO, they've got the cell phone pings, and we haven't heard much about those in the past month and a half, the hour or so Terri was driving baby K around, and whatever issues with the polygraphs. Based on what they don't have, and based on the pleas for help and the release of the questionnaires, I think there is enough information to make a reasonable guess about what they do have. IMHO, they don't have much. IMHO, in the absence of a more likely suspect, Terri became the suspect by default -- then came Desiree's instincts, Terri's odd behavior per Desiree and Kaine, the issues with the polygraphs (if there were any), the portion of Terri's alibi not verifiable, the MFH plot, the sexting, and the batphones. Honestly, what happened in the aftermath is what, IMHO, has convinced LE of their position or has justified it, but also IMHO, everything that has happened in the aftermath is reasonably explainable. I may not agree with what has happened, or the choices made, but I don't think what's happened requires any great leaps of logic or Terri being guilty, either.