Based on Arnold's description of the man in the window, his impossible description of the rifle and supposed estimation of the caliber of rifle with a scope from a distance of 150 feet, his wife's assessment of his honesty, and his inability to tell the same story twice it can only be concluded he fabricated the whole story based on the conversation about Adlai Stevenson. Unbeknownst to Arnold there really was a gunman on the 6th floor.
Mr. SPECTER - You say you only saw a small portion of what?
Mr. ROWLAND - Of his pants from his waist down.
Mr. SPECTER - Which half of the window was open, the bottom half or the top half?
Mr. ROWLAND - It was the bottom half.
Mr. SPECTER - And how much, if any, of his body was obscured by the window frame from that point down to the floor?
Mr. ROWLAND - From where I was standing I could see from his head to about 6 inches below his waist, below his belt.
Mr. SPECTER - Could you see as far as his knees?
Mr. ROWLAND - No.
Mr. SPECTER - How much of the rifle was separated from your line of vision by the window?
Mr. ROWLAND - The entire rifle was in my view.
Mr. SPECTER - In the open part of the window?
Mr. ROWLAND - Yes.
Mr. SPECTER - And how much of his body, if any, was in the open view where there was no window between your eyes and the object of his body?
Mr. ROWLAND - Approximately two-thirds of his body just below his waist.
Mr. SPECTER - Up to what point?
Mr. ROWLAND - Mid point between the waist and the knees, this is again in my proportion to his height that I make that judgment.
Mr. SPECTER - So from the waist, some point between his knees and his waist, you started to see hi clear in the window?
Mr. ROWLAND - Yes.
Mr. SPECTER - And from that point how far up his body were you able to see without any obstruction of a window between you and him?
Mr. ROWLAND - To the top of his head. There was some space on top of that where I could see the wall behind him.
Mr. SPECTER - What is your best estimate of the space between the top of his head and the open window at the perspective you were observing?
Mr. ROWLAND - Two and a half, three feet, something on that--that is something very hard to ascertain. That would just be an estimation on my part.
Mr. SPECTER - How much, if any, or all of that rifle could you see?
Mr. ROWLAND - All of it.
Mr. SPECTER - You could see from the base of the stock down to the tip of the end of the rifle?
Mr. ROWLAND - Yes.
Mr. SPECTER - The barrel of the rifle?
Time and time again Arnold shows he doesn't have the correct description of how the person should have appeared in the window no matter were the gunman was standing in the room. He is both describing the person as if he is standing next to the window and also far back into the room. At no point in time is Rowland properly describing what the gunman would have appeared to look like in the window with a 30 inch opening. That is what the Specter and the WC discovered in the course of his interview. Rowland was repeatedly shown to be fabricating his story and had absolutely no credibility as a witness.
Sorrels even believed him right up to the point of his estimation of the man standing 15 feet back from the window. Either near to the window or far from the window Arnold's description of the gunman does not prove to be true.
Mr. STERN - Did you look towards the window that Roland had pointed out from the spot at which he said he was standing, to see whether it was possible to observe from there someone standing several feet back from the window? Did you have occasion to check that?
Mr. SORRELS - Well, no, not specifically.
Later on I heard that he had--I believe in his statement that he wrote up down there at the sheriff's office, something about 15 feet back. And I thought to myself, well, I don't think you could see anybody that far back.
Mr. STERN - But he didn't tell you that?
Mr. SORRELS - No, he just said he was standing back of the window there, just kind of looking around there. He said after he saw him there, he didn't pay any more attention, because he just thought it was a Secret Service man.