I would like to see a timeline of the household laid over BK's timeline from let's say midnight onward.
Where was BK when MM and KG were texting KG's (ex)bf? Where was BK when bedroom lights were on and off?
I'm curious too to know if BK had any awareness of the presence of another person (the doordash driver), did he encounter that vehicle on his arrival?
What exactly prevented him from stopping on the earlier approaches?
Did he know -- or care -- who was there that night?
If I assume that he didn't intend to leave the sheath, I assume further that he didn't expect a battle. I can only conclude that he didn't expect to find two people in bed, and while a military-grade knife like that is the most unfair advantage, he wasn't prepared for a sudden moving target. One he needed to silence, not also reach, as she was on the far side of the bed, on the other side of his first victim. He's tall, room is small, bed hugs the wall. Did he reach across, fighting now like a swordsman? Not stabbing, swiping? Did he mount the bed?
I always come back to the anomalies that night. 1. KG being there. And with her, Murphy. 2. Not just KG being there but because of the novelty of her visit, she wasn't in her old room but in MM's. 3. XK being awake. 4. EC being there.
Looks like 4 things BK might not have prepared for.
Which means he may have prepared for a vastly different crime than the one he left behind.
And had those 4 things not been in place, would the sheath have been left behind? Would DM have heard anything? Would BK have had to drive by as many times as he did? Lights might have been out much, much earlier.
Had BK approached only once, parked, entered in silence, murdered MM in silence, would he have lingered? Was that part of his fantasy, such that he had one? To watch her "sleep"? And had he left as silently as he entered, where would this investigation be?
LE would have at least some cctv of the white Elantra...
But no DNA. No witness. No immediate timestamp.
Just one presumably targeted murder, no suspect.
And an emboldened murderer who learned something new, how easy it was.
I wonder how long he would have waited to strike again.
JMO