IMHO
Either TH is the most unfortunate being since Job, or where there is smoke there is fire.
1) The mysterious doctor's appointment and the intended reason it was scheduled, and the when or even if it exists
So far as I know, there has been no evidence released about the appointment by anyone really in a position to know. There has been speculation by friends-of and random internet postings but no real evidence.
2) The miscommunication that occured so no one at the school was prompted to call the home and report Kyron absent
I read the Skyline School handbook (posted by Calliope in the reference forum). There are policies that parents are asked to follow regarding absences but there is absolutely nothing written about "if your child is absent without a previous excuse, we will contact you, blah blah blah."
In other possible situations, like delayed start days, child injured at school, etc, they do talk about how they will contact the parents.
I wish I could remember the media source now but at some point, some school official indicated that there just wasn't a problem with truancy at the school. The oldest grade is eight, so there was no problem with students being able to drive. The school is not within easy walking distance of, well, anything that might attract a kid, like a mall, video arcade, fast food, etc.
I'm not convinced that there was any particular effort needed to prevent a call to the home. The school just doesn't seem to have a policy of doing so or a previous need to do so.
3) The need for a truck that was never used for its borrowed purpose
4) A cell phone that pings at will
5) The inability to weave an alibi to allow your family to know you too are a victim of this horrific tragedy.
All of which tend to implicate her but are not proof, in my opinion, of guilt.
The problem is that in court, it generally requires more proof than mere opportunity. The cell phone pings are suggestive but without a body, well, so she was probably on Sauvie Island, it's not like that is illegal.
She's either living the Job-effect or a premeditated plan that will eventually unravel.
Most importantly, please come home, Kyron. We're all praying for you!
Or she's going through what 255 people convicted and then exonerated went through. Eighteen of those people spent time on death row before they were exonerated.