In a chilling new memoir of the day JFK was assassinated, a former Secret Service agent said Jackie Kennedy leaped onto the back of the presidential limousine in a desperate bid to save her husband by attempting to retrieve a piece of his skull. She then climbed back into the seat and cradled Kennedy's head in her arms, saying, "Jack, Jack, what have they done to you?" America watched, stunned, that day in Dallas as shots rang out and Jackie seemed to reach out to the agent who leapt onto the back bumper of the limo. That agent, Clint Hill, now 80, recalls the horrifying moment in his book, Mrs. Kennedy and Me.
"Somebody had fired a shot at the president, and I had to get myself between the shooter and the president and Mrs. Kennedy," he writes. "Nothing else mattered." As he raced toward Jackie he could see "her eyes were filled with terror," he recalls. "She was reaching for something. She was reaching for a piece of the president's head." At the hospital later, Hill said the "light had gone from her eyes." Hill has previously blamed himself for not reacting a split-second sooner to at least take the third bullet himself, reports the Daily Mail. "How did I let this happen to her?" Hill says he too frequently wonders. "Because of the angles, the weather, where we were—everything—I did all I could," he tells People. "But I still feel guilt." (Read more Clint Hill stories.)