"I saw one man of Vietnamese holding the young girl's hair with his left hand bending her head back, bearing her throat. His right arm was around her neck and a knife in his right hand was dug deeply into her flesh beneath and to the left of her esophagus," he says. "It took no more than a second from the instant he moved the knife until she crumpled in a lifeless heap." He recalls grabbing an American lieutenant by the shirt: "In that instant, I was only a flick away from killing him"