Agreeing with you, R-f-p, because statistically, with how the actual crime went down, ......violent home invasion (random) makes a lot of sense.
Every theory has to be entertained. And, then, the "opposite" theory has to be entertained.
Hence, our ongoing exploration of: The crime was targeted.
I'm hoping LE has looked at the Cameron connection thoroughly.
Could the perp(s) be from Cameron? And over the years, the perp had watched Jayme when she was dropped off at school, or at her aunt's house in that neighborhood. Maybe the perp lived near the school, or near the residence where Jayme visited as a youngster, while both parents were at work? He could see her regularly. And the family (Aunt, Denise, other neighbors, etc.) had no real idea he was a predator, or at least had an unhealthy connection to her.
Then, in the perp's own mind, he feels that "Jayme is slipping away." First, she's getting older, ..therefore, she doesn't need babysitting nearby anymore. Second, she now has "moved away" back to Barron, and the Barron school system. Does the perp feel he is very important somehow to the family? And now he has, in his own perception, "been cut out"?
And what was going to happen in the future? What was the precipitating event that made the crime have to happen that Sunday night? And, so, the perp's only recourse, only option ..... was extreme violence (double homicide and a kidnapping) Why? (The perp, of course, perceives all those actions as justified.)
What was the perp trying to prevent? In his mind,..... was Jayme going to become even more removed from his life? Was all contact to be ended? This was unbearable to him, (or them, if multiple perps). And it caused him a lot of rage towards the parents. (IMO)
I'm trying to attach a logical conclusion to stuff that isn't logical at all.
And, again, also........trying to entertain all theories because everything is still on the table.......