Marine Corporal Kyle Carpenter Tells His Astonishing Story of Recovery to David Letterman [VIDEO]Marine Corporal Kyle Carpenter Tells His Astonishing Story of Recovery to David Letterman [VIDEO]As the Mom of two U.S. Marines, this video makes me so emotional. It's the recent appearance of Corporal Kyle Carpenter on 'The David Letterman Show'.Erin McCartyErin McCarty