Some of the known facts provided by LE are being misstated in these recent discussions. To clarify:
1 The idea stated here that loser perp was there at 3:00 doesn't align with what LE has told us. They have said that loser perp was first seen at ~3:50 am, entering the hallway from the kitchen.
2 The idea stated here that MB was there at 4:00 doesn't align with what LE has told us. They have said that MB arrival and entrance was at ~4:18 am and the killing was apparently very shortly thereafter.
3 The footage we the public have seen of loser perp is within that 30 minutes. But we only have about 2 minutes of video, we don't know how much more LE has during that time frame, we don't know exactly when each snippet of video is timestamped or what order timewise or is there is more video in between, or is there more tying things together (except, from statements, they have hinted that the first moments on the public video are indeed the first they have). VI told us he concluded the footage was mostly, but not entirely, in order, based on his own analysis.
4 None of the video of when MB arrived, or after that, has been seen by us. But LE also has video with MB entering the building at ~4:18 am, caught on cam. They track her for a ways up the westside hallway and then the cam stopped recording - in theory she is in the field of vision, at a place seen on the camera when it records, but the cam shuts off (it's the nature of motion-activated camera, when the motion gets farther away from the cam itself).
5 Her death apparently happened at a place "seeable" by the cam, but it did not record it.
6 The assumption is that she was killed shortly thereafter from when the cam shut off, as she was found further up that hall (location revealed to us by the VI). That's a place all the way across the church building from where she entered it.
7 LE says campers arrived not long after she was last seen.
8 FBI records tell us the weapon of death was "Handgun - pistol, revolver, etc". They were discovered online about 3-4 years after the killing. An early SW mentioned "puncture wounds" which we all assumed meant death by knife or some other stabbing instrument, but LE always sidestepped answering how she died (they declined ALL questions on the topic with a promise to talk about it later, which they never did), and technically a bullet wounds/kills by puncturing the skin.
9 MB had a pistol (hers) found in her SUV but it had not been fired. Early FOIA requests (and refusals) hinted at investigation of gun-related questions, and both FBI and ATF and sniffing dogs were part of the investigations the first few days, including on-site. LE danced around answering why ATF was there, eventually saying that ATF and FBI were there because local LE needed the help/expertise.
10 LE's words seem to indicate that some of loser perp's exit was caught on cam, though we haven't been given that footage, and that they indicate a likely exit the same way he came in (ie, via kitchen door).
11 Apparently loser perp left behind "some various tools found around the crime scene" per LE. We have no idea the size, nature, or even whether these were items brought by loser perp vs items LP might have found in the building and used. (From their other statements, I suspect the term "tools" might have been used VERY broadly as a descriptor here of what was found.)