Who is this kneeling man?

My search for the truth about my father and Martin Luther King’s assassination.Leta McCollough Seletzky grew up knowing that her father was the ‘kneeling man’, photographed tending to the head wound of Reverend Dr Martin Luther King Jr just moments after he was shot in April 1968. As a teenager she stumbled across an alarming detail about why her father was there on that infamous day; it plunged her into the world of conspiracy theories and family secrets. It would take her many years to dig out his true story.Presenter: Mobeen Azhar
Producer: Rebecca Vincent