Kenneth O'Donnell
Presidential Aide
Secret Service Follow-up Car
DEPOSITION: May 18, 1964.
Mr. O’DONNELL. My reaction (to the source of the shots) in part is reconstruction—is that they came from the right rear. That could be my best judgment.... looking at the manner of the President’s movement, I would think you would have to feel the thrust of the shot was from the right rear.
Mr. SPECTER. Now, what was there about the President’s movement which leads you to that conclusion?
Mr. O’DONNELL. He was leaning out waving. He may have just been withdrawing his hand. And the shot hit him, and threw him to the left. He slumped on Mrs. Kennedy.
FROM MAN OF THE HOUSE, by Tip O’Neill, Random House: 1987.
page 178 
I was never one of those people who had doubts or suspicions about the Warren Commission’s report on the President’s death. But five years after Jack died, I was having dinner with Kenny O’Donnell and a few other people at Jimmy’s Harborside Restaurant in Boston, and we got to talking about the assassination.
I was surprised to hear O’Donnell say that he was sure he had heard two shots that came from behind the fence.
"That’s not what you told the Warren Commission," I said.
"You’re right," he replied. "I told the FBI what I had heard but they said it couldn’t have happened that way and that I must have been imagining things. So I testified the way they wanted me to. I just didn’t want to stir up any more pain and trouble for the family."
"I can’t believe it," I said. "I wouldn’t have done that in a million years. I would have told the truth."
"Tip, you have to understand. The family—everybody wanted this thing behind them."
Dave Powers was with us at dinner that night, and his recollection of the shots was the same as O’Donnell’s.