I'll give it to you again.
Mr. BELIN. At the time you saw this man on the sixth floor, how much of the man could you see?
Mr. BRENNAN. Well, I could see at one time he came to the window and he sat sideways on the window sill. That was previous to President Kennedy getting there. And I could see practically his whole body, from his hips up. But at the time that he was firing the gun, a possibility from his belt up.
To me, Brennan is talking about the two incidents when he saw the gunman. Not that he saw the gunman "from his belt up" all during the shooting viewing, which is your interpretation.
The gunman was leaning forward in order to use the top of the box (Box "A") to steady the rifle. After the last shot, he straightened up his spine or stood up altogether. Either would expose more of the gunman to Brennan's view. Where do you get "crawl"?
That would be you promoting Brennan as a "loon" because you figure he saw the gunman from the belt up all the while during the shooting.
The gunman was leaning forward in order to use the top of the box (Box "A") to steady the rifle.That would place the standing gunman BEHIND the stacked boxes.....If he used the boxes as a steadyrest the angle ( about 45 degrees) from his shoulder to the top of the boxes would have him firing the rifle into the window sill beneath the half open window.
And the stacked boxes would have prevented Brennan from seeing the entire upper portion of the man's body from his belt up. As a matter of fact if the man was standing behind the boxes as you argue, then Brennan would have been able to see the man's shoulders and head.
After the last shot, he straightened up his spine or stood up altogether. Either would expose more of the gunman to Brennan's view. Where do you get "crawl"?