Wow, that was a very insightful analysis. I do agree with a lot of what you said. The dynamic between Chris and Shanann did seem off, as she herself said in a few videos. Chris didn't like the way she spoke to him at times, especially in front of their children.

And as for the rift with Chris’s parents, I’m intrigued by that too. There were a couple of incidents when his parents ignored Cece’s allergies and put her at potential risk. I understand that a mother would hate endangering her kids, and Shanann was the same. But, I did wonder what was so wrong that their relationship was rocky right from the beginning. (His parents didn't attend the wedding, as I understand it).

And yes, it didn't seem like a sudden psychotic episode. The murders were most likely premeditated, and as you said, unnatural.