I hope you're wrong, but really don't have anything to point at that would disagree with you.
I've notice, and mentioned, that from where we sit, there is literally nothing we have discovered to narrow down the possibilities. It's almost anyone we want to imagine, with any motive we want to prefer, and almost any description.
Almost all we have is
* a person - don't know sex, height, skin color, hair color, eye color, age, or anything to distinguish -
* who was able to be at CCoC about 4:30 am that day.
* coulda lived almost anywhere, and even a long ways away given the ability to come and go by major highway.
* as far as we know, no prints of any kind, no physical evidence left behind (that we know of), just a busted in door and some windows.
* maybe or maybe not a connection to MB,
* maybe or maybe not an intent to kill (rather than there for another purpose),
* maybe or maybe not driving some sort of dark SUV (which narrows it to a million or more possibilities, I would guess)
* we do know it is someone who intended to wear a disguise, and was there on purpose, which coulda been anyone I guess
Frustrating, but really nothing definitive at all.