Mr. McDonald. On the right curb, Elm Street, before you enter the triple underpass.
Mr. Ball. And how long did you stay there?
Mr. McDonald. Approximately 35 minutes.
Mr. Ball. What were you doing there?
Mr. McDonald. Well, after I left the car, my partner and I reported to a supervisor, and he directed us to patrol the crowd and move the crowd around Elm Street, and rope off the area.
Mr. Ball. Now, was your radio on?
Mr. McDonald. Yes, sir. There were several police units around the intersection, and all the radios were on. And after I had moved the crowd around, went back to the entrance of the Texas School Book Depository, I heard this over the police radio, of—the first thing I heard was that President Kennedy had expired at Parkland Hospital.
And the next thing I heard was a voice over the radio that was not familiar to police procedure. He was saying that an officer had been shot, and that he was using car No. 10 radio. Of my own knowledge, I knew that car was driven by Officer Tippit, and that that car was assigned to his district.
Mr. Ball. Did he give you a location?
Mr. McDonald. Yes, sir; 400 block of East 10th Street.