HUH? Just HUH? Dr. Young said he saw the bullet. He even gave a detailed description of it. That is "first-hand knowledge" by any definition.
Any record of Young saying that before 2001?
Chief Mills confirmed to Navy historian Jan Herman that he and Martinell found a bullet in the rear of the limo and that Dr. Young later called him to verify his account. Confirmation from one of the two guys who found the bullet is "first-hand knowledge" by any definition.
I'd like to see the documentation for this claim. The Secret Service conducted the search of the limo for physical evidence. Do you really think they would have let two Navy non-coms to just show up and search the limo. The story makes no sense, but CTs never seem to care if the myths they choose to believe make any sense.