Agree with this. If it was a hitman, what if she's late or the students came early? All that setup gone to waste or shoot everyone up? IMO
I see both possibilities - MB was in wrong place wrong time, or MB was targeted - as equally possible so far, and like to hear ideas that offer ideas from either perspective (although I do push back when wording makes assumptions that sound like a statement of
fact).
I'm still waiting for something that forces us away from assumptions, and provides some
fact, as to whether the target was the church (ie a burglary), or whether it was MB. But so far, I don't think there is any fact like that.
The one thing that makes me
lean slightly to the burglary side is to just observe the recorded actions of the perp in the church, and what it looks like. By objective appearance, they aren't the actions of someone who is waiting for a victim to arrive, and trying to be prepared for that entrance. Instead, it looks like he is going through the church room by room looking for something to steal. In addition, his attention appears to be on wherever he happens to be as he wanders the halls; it doesn't look like he has urgency and is trying to be in position for where and by whatever time MB might arrive (in just a few minutes). It looks like perp has a much longer "clock" (ie, needs to leave before church staff arrives at 8 or 9 or whatever time they would usually arrive) instead of just a few minutes (when MB would be arriving). There are no assumptions with those ideas, just observations.
[Note - I often use "he" and the like, but don't assume it's a male. I do it because it's just less cumbersome wording, and also because I think it was the proper grammatical form, to use the male pronouns to speak of a person of unknown gender, from when I was in school.]
On the other hand, those observations don't
prove the church was the target, and certainly can't rule out that the perp was there to target MB. If MB was targeted, we can create a narrative that explains what we see in perp's actions in terms of MB being the target.
But if we lay aside all assumptions, and just observe, that's my one observation that at face value offers a possible hint. Maybe.