And let's remember, we (in general) don't really know much about any of these people around this case, and cannot sleuth them and report on it here.
Maybe the lady just felt defeated. A serious health issue whether under control or not, a super-stressful and demanding job, the wife of someone in the public eye, city government no less, a possible love triangle but at any rate marriage problems and arguing to at least the point that some moving plans are made and divorce is spoken of. Add to that that I think her grandkid(s) were frequently under her care at night, GAH! Maybe when the daughter tried to slow the roll on the packing Jennifer took that as not being supportive enough (not saying that is true, but in a high stress situation, molehills can become mountains in someone's mind).
My biggest hope (unrealistic at this late date, I know) is that Jennifer just got fed up and decided to put herself first for a change. Decided to chuck it all and go rent a villa somewhere that feels like paradise to her. I have often thought of doing that! LOL. It wouldn't be all that hard to push the go button on that plan if you've had it up to your earlobes with life as you know it.
I'm wondering about the Tahoe, said not to be her daily driver. Was it an old "spare" vehicle, laying around? If so, I can see her taking that instead as it's likely paid off (2007) and saying, "Let him keep everything else! I'm free!"
Hoping her 'glory' is really just a glorious place where she feels peaceful and free. Still also wondering if they got tax refund checks in paper form? She could have cashed them and stashed the money. It's also not hard to stash money away little by little if you know a marriage is in trouble.
I'm not ready at all to believe she is deceased. Of course, I admit that might be because I am being optimistic. I will continue to watch for any developments and hope for the best.