Shortly after the two photographs of Lem that we saw earlier were taken, he was presented to a senior South Vietnamese National Police officer. By happenstance, Adams was on the scene, as was an NBC News film cameraman named Vo Suu. And the incident that occurred next produced some of the most horrifying images of the Vietnam War, including arguably the most shocking single still image.
Eddie Adams subsequently took this dramatic shot of the summary execution that ensued. Recalling the event years later, Adams told Newseum, “Then I see him go for his pistol, and as soon as he raised his pistol, as soon as he brought it up, I took the picture.” The photographer also admitted that at the time he had no idea how immensely significant this single frame would turn out to be.