Mr. Ball. Now, will you take this pen and draw on there your position on the overpass?
Mr. Brown. Well, you see, on this overpass, of course, there are the tracks and then there is a railing and then there is a catwalk on each side and we walked the catwalk, and we would come around on each end and we would walk the tracks and come around there.
Mr. Ball. Where were you when you saw the President's car turn on Houston and Elm Street?
Mr. Brown. I was on the catwalk.
Mr. Ball. Can you mark your position?
Mr. Brown. I would be—approximately in the center. (Instrument marked by the witness, as requested by Counsel Ball.)
Mr. Ball. Have you marked the place where you were?
Mr. Brown. Yes; it would be about the center of that.
Mr. Ball. Is that where you were when you heard the shots?
Mr. Brown. Yes.