So a 2nd shooter on the garage roof over the gate and just behind this sign fired one additional shot that was not heard? He must have fired the Z313 shot because he had a better quality rifle with a correctly zeroed scope and his plan was one shot one kill.
But this cannot be right because 3/4ths witness heard 3 shots with the last 2 very close together. And Harold Norman heard 3 shots from above him.
So this 2nd shooter must have been almost as stupid as the 6th floor TSBD patsy shooter since he didn’t use a suppressor and fire a subsonic round. He just figured one shot from his typical loud sounding rifle would be heard from slightly different direction and then he would quickly escape unseen from the garage roof by … ( this part must be completed by Royell Storing) 
There were multiple eyewitness accounts of at least 1 shot being fired from the bushes/shrubs that run along the Elm St Extension. Either a shot was fired directly from the other side of those bushes/shrubs, or through the trees directly Above these same bushes/shrubs. That shot would be a Miss/Lost Bullet. Maybe striking the Tague Curb, or near the manhole cover on the (S) side of Elm St.
- A Possible Escape Route From Above The Huge Gates -
There are TSBD 2nd Floor windows that hugged the roof above the Huge Gates. The final TSBD window on the other end of this Roof is right next to the stairwell that Oswald is alleged to have used. A shooter atop the Huge Gates could escape by: (1) Walking along the roof, (2) climbing through that final window, (3) immediately entering the stairwell, (4) exiting the stairwell onto the rear of the TSBD 1st Floor, (5) then walking directly onto the loading dock behind the Huge Gates, (5) exiting the loading dock through the "wide open" Huge Gates, (6) emerging onto the Elm St Extension, and (7) getting into the "getaway" car that is parked only feet away. The "getaway" car having been put in motion down the Elm St Extension upon the sound of shots being fired.
