(3/6) One trick part is satellite image angle. It is possible to see the east side of the building so I considered the start on blue line but for dimensions I used the roof (red). The offset measured is 1.5 yards to the east. This is the most correct way to do, because all measured are made in the same elevation (the ground level).
After that I extract the positions of building, Trump stage, and the south bleacher. Exported in the Mercator projection to excel, then after defining the line of fire as horizontal from Crooks to Trump by rotating the coordinates.