With Google Earth it would be easy enough to estimate the elevation of Trump’s head and the elevation of the roof. Based on the one photo of the bullet whizzing past his head things would need to be about the same elevation.
Planned...intentional...blown. The coverup is in full swing.
I think the elevation question would be close either way - wondering more about the azimuth angle and whether the window shot aligns with the collateral human death and injury, plus the hydraulic lines of the speaker lift.
This video may help with your discussion of the height and angle of the shots.
https://www.youtube.com/watch?v=-w2lVIJc000