[deks]

The shooter in the video (linked at your reply #14 above) is on the grassy area between the parking lot and the school...

Google street view, from the same angle as the video

Then turning Google street view 180 degrees to the house across the street (420 Geraldine St) -- looks like the video was taken from a second floor window on the side of the house. The multi-trunked tree is seen on the left.

In that video from second floor window, a stub of the severely pruned tree in front of the house is briefly seen at 0:11, and the multi-trunked tree is also seen on the right at 0:11 -- the video at 0:11 seconds...

Zooming in on the tree in the video with four trunks (not four human legs)...

The same tree seen from the opposite side in Google street view (a different angle, so the spacing of the tree trunks differs appropriately)...

My conclusion is that the dark lines are tree trunks, not human legs, and not two men watching the shooter enter the school from across the street.

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[TigerClaws]

That’s some fine internet sleuthing.

I believe you are correct. Never seen a tree like that but it looks to be a split trunk.

I stand corrected, sir.

Explains why he wasn’t engaged beforehand.

I read together the grandmother worked at the school which is why he chose that specific one. Perhaps he’d been there before.

Amazing someone just happened to film his entrance.

[21twelve]

I mentioned your excellent observations (and time) on another thread where I too thought it was two people. Another observation - the utility pole is on the same side of the street as the tree trunks (Google earth). From the upstairs’ video I thought it was on the other side of the street closer to the school!