I posted the Phyllis Hall video earlier. She was a nurse who said she saw a bullet on Kennedy’s stretcher in the Parkland ER.
Thanks to Russ Baker, we now know there was a second nurse, Sharon Thouy, who also recalled seeing a bullet on top of bloody stretcher next to the Trauma room where Kennedy was being operated on
(She discusses the bullet around 4:23 in the clip)
Whether Landis is telling the truth or not, it seems plausible that the mostly intact bullet that was found at Parkland was from Kennedy’s stretcher, not Governor Connolly’s.