Some of my take-aways
The delay in calling 911 may have created an occasion for BK to jump the gun, exposing knowledge of the crime before it was reported. Possibly even knowledge about the crime before it was committed.
KG's former boyfriend has a solid alibi, they did get ATR for him and it all checked out. As we knew it would.
There might be evidence of a spray cleaner having been used in the Elantra, one with proprietary origins. Not just anyone can get it.
Sounds like the slider was left open.
My own observation: BK seems to have a long history of questionable behavior with women and IMO the pandemic moved BK along in ways that allowed him to interact remotely, garnering a success he could never have pulled off in person.
Nominated for a PhD program, never having met in person? If that's how it happened, it's no wonder. In person, he's creepy.
All MOO.