I told Jerry Kivett and Warren Taylor to pull all the shades and blinds, which they did. And they also busied themselves with evacuating a couple of people out of there. There was a nurse and a patient in there. Mr. SPECTER. Before you go on, Mr. Youngblood, let me drop back and pick up a few of the details theretofore. What would your best estimate be of the speed of the Vice President's car at the time you heard that first explosive noise? Mr. YOUNGBLOOD. Oh, approximately 12 miles an hour. Mr. SPECTER. And had you maintained the distance which you have described heretofore behind the President's followup car? Mr. YOUNGBLOOD. Yes, generally. Sometimes as we went around corners, we tried to close up the gap a little bit. But as soon as we got on a straight stretch, we would drop back two or three car lengths. Mr. SPECTER. Well, at this particular time, what is your best recollection of the distance between the Presidential followup car and the Vice President's car? Mr. YOUNGBLOOD. We are on Elm Street now. Mr. SPECTER. At the time the first shot occurred. Mr. YOUNGBLOOD. We were two or three car lengths behind. Mr. SPECTER. And how far behind the President's car was the Presidential followup car at the time of the first shot? Mr. YOUNGBLOOD. I would think somewhat less than a car length. Mr. SPECTER. What is your best estimate of the total timespan between the first and third shots which you have already described? Mr. YOUNGBLOOD. From the beginning to the last? Mr. SPECTER. Yes, sir. Mr. YOUNGBLOOD. I would think 5 seconds. Mr. SPECTER. And you have described the first shot as being an explosive noise. How would you describe each of the second and third shots? Mr. YOUNGBLOOD. Well, there wasn't too much difference in the noise of the first shot and the last two. I am not really sure that there was a difference. But in my mind, I think I identified the last two positively as shots, whereas the first one I thought was just an explosive noise, and I didn't know whether it was a firecracker or a shot. It seems, as I try to think over it, there was more of a crack sound to the last two shots. That may have been distance, I don't know. Mr. SPECTER. Now, as to time interval--was there longer or less time or the same between the first and second shots and the second and third shots? Mr. YOUNGBLOOD. There seemed to be a longer span of time between the first and the second shot than there was between the second and third shot. Mr. SPECTER. Now, did you have any reaction or impression as to the source or point of origin of the first shot? Mr. YOUNGBLOOD. I didn't know where the source or the point of origin was, of course, but the sounds all came to my right and rear. Mr. SPECTER. Now, how about as to the latter two shots, would the same apply, or would there be a different situation there? Mr. YOUNGBLOOD. No; all of them seemed to sound that they were from the right.