I still am mulling the solicitation charge. Why in the heck he would want someone to kill KB is beyond me but since he was charged with it I'm going on the thought it involved child custody and he didn't want to dirty his hands.
But I honestly think that while at the condo, opportunity presented itself, he went into a rage and killed her himself. And because LE was all over the condo the night before the arrest, I think they were acting on the info that they were getting from the person he solicited.
Blood spatter is a funny thing. No matter how much you try to clean it, people forget that it travels. The loft seems like the place that would have provided the most "bang for your buck" on spatter evidence. There is no WAY he was in there painting and dry walling. The ladder LE had was because there were unnoticed spatter perhaps on the ceiling. The loft edge might have contained matter.
As for dumping her body, I think he had KB in the truck and since he had the baby as well, perhaps he met with his solicited person and had that person do the body dump?
This is the only scenario that makes any sense to me at this stage of the game and with so little info.