South Vietnamese Gen. Nguyen Ngoc Loan, chief of the national police, fires his pistol, shoots, executes into the head of suspected Viet Cong officer Nguyen Van Lem (also known as Bay Lop) on a Saigon... more 
South Vietnamese Gen. Nguyen Ngoc Loan, chief of the national police, fires his pistol, shoots, executes into the head of suspected Viet Cong officer Nguyen Van Lem (also known as Bay Lop) on a Saigon street Feb. 1, 1968, early in the Tet Offensive. This photo went on to become one of the most notable photographs of the 20th-Century. (AP Photo/Eddie Adams) less 
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Associated Press | Photo By AP Photo/Eddie Adams
Fri, Jan 24, 2014 9:00 AM EST