DallAS -- A doctor who worked at the hospital where President John F. Kennedy and Lee Harvey Oswald were treated says Kennedy's fatal head wound "had to have come from the front."
Dr. Charles Crenshaw is breaking his 29-year silence on the subject by talking to two national television shows, ABC's "20/20" and the syndicated "Now It Can Be Told." He has written a book, "JFK: Conspiracy of Silence," to be published next week.
In his interviews, Dr. Crenshaw says the shot to the head could not have been fired by Oswald.
He also tells of receiving a phone call from President Lyndon Johnson, who demanded a "deathbed state ment" from Oswald after he was shot by Jack Ruby. Oswald made no known dying statements.
In a portion of the interview provided by "Now It Can Be Told," Dr. Crenshaw said Johnson's phone call came to him shortly after Oswald was rushed to Parkland: "All of a sudden this voice like God comes across. 'This is Lyndon Johnson.' And he said, 'How is the accused assassin doing?' I said, 'Well, he's holding his own. He's critical. He's lost a great amount of blood. We hope we can save him.' He said, 'Would you take a message to the operating surgeon?' I said, 'Sure.' He said, 'I want a deathbed statement from the assassin.' And all of a sudden the line was broken."
Dr. Crenshaw tells "20/20," according to a transcript provided by the program, that he looked at Mr. Kennedy's wounds before "we placed him in the coffin."
"And the rest of my life I will always know he was shot from the front," he said.