In 'The Parkland Doctors,' distinguished physicians talk about JFK’s last moments for the first time

What prompted Bill Garnet, a man with a long career in the entertaining world of reality TV, to take on the daunting controversy of JFK assassination?

“A gaping hole in the story,” he said in a recent telephone interview “What happened in Trauma Room One?”

Actually Garnet, the Los Angeles-based producer of “The Parkland Doctors,” a forthcoming documentary…