Yes. That was good work to explain the tree trunk as I was in error looking at the video.
Sorry if my comments misled you as well.
After all we’ve seen the last few years... hard to tell what’s a ‘conspiracy theory’ and what’s tomorrow’s news!
In looking on youtube and then at more of the news photographs of the site it appear that the killer walked right passed a sign that told visitors they needed to get a pass at the office.
There is a HUGE sign (3’ x 4’) on the wall outside that side door that has at the top “WARNING” and then “Any person entering school property without permission.... “ (The rest of the sign is blocked by the police standing around, but it is two paragraphs long.)
I guess the sign kept the honest folks out.