Why didn’t he take them right away?
It's a good question. Those who feel this was likely premeditated but looks sloppy because his plans were derailed by the flight delay, have been challenged by those asking similar questions.
For example, he knew about the camera, and/or he planned to take the bodies out through the garage when he left for work so he wouldn't be seen driving around in the middle of the night the night before his family goes missing, how does a flight delay matter?
These questions have certainly given me pause.
Maybe he wasn't really aware that the camera next door would capture everything coming in or out of the house. Maybe he thought he would have time to kill everyone and then take them out through the back which butts up against a cul de sac and undeveloped property. Or he would have a lot of time to dispose of everything, check the scene carefully, and stage it after killing everyone earlier in the night, and still take them out through the garage on his way to work.
I truly suspect the flight delay has something to do with why the crime scene was sloppy. My feeling is this was likely planned in advance and not a sudden rage attack -although I'm on the fence- and I see a scenario in my mind that makes sense.
I see him obsessively watching the flight trackers or his phone and texting her a lot about the delays. I imagine he either killed the girls in advance and was starting to freak out with the knowledge that he would be expected to take them to school or have them make an appearance in public Monday, or talk with mommy, and he would be expected to get a sitter so what if her flight didn't come in that night? Then what, if the kids were already dead.
Or he had decided that it had to be that night. For whatever reason. Kids weren't dead yet. But he needed that to be the night. Maybe his affair gave him an ultimatum. Maybe he felt due to trips and the beginning of the regular fall season of pre-k (or was she entering kindergarten), and a gender reveal party he would likely be in no mood to endure if he planned to end the baby before he was born, that it had to be then, as someone explained really well here in another post.
So instead of spending time while the flight was delayed, carefully staging the scene, he's panicking. He's checking and re-checking the flight tracker and trying to figure out what to do.
Now time is going to be tight. He won't have time to kill the wife and kids, carefully load them up, dispose of evidence, leave for "work", get rid of the bodies before the sun rises and someone might see him AND stage the scene.
At that point he might have been totally freaking out. Plans to remove her purse and phone and the kid's medicine, or their car seats from the car, etc., might have flown out the window as now he's faced with reality.
He couldn't have had several hours to clean the bedding and put it back on, unlock a window or the back slider, grab several of their things, and have all the bodies loaded and ready to be concealed, and still have time to dump property in remote locations or down other oil drums or in a dumpster somewhere on the way back from work.
But the flight delay and that terribly noisy Nickole who had no right to be concerned and get involved (according to a few posts) blew his plans and ability to stage things.
It's going to be interesting to see how the pans out. Data on phones and computer will be quite interesting.