South Vietnamese Gen. Nguyen Ngoc Loan, chief of the national police, shoots Vietcong officer Nguyen Van Lem, also known as Bay Lop, on a Saigon street on Feb. 1, 1968. South Vietnamese Gen. Nguyen Ngoc Loan, chief of the national police, shoots Vietcong officer Nguyen Van Lem, also known as Bay Lop, on a Saigon street on Feb. 1, 1968. (http://rarehistoricalphotos.com/saigon-execution-murder-vietcong-saigon-1968/)