Rene Gagnon Jr. said he doesn't know what to feel anymore when he looks at the iconic image of Marines raising a U.S. flag during one of World War II's most famous battles. For his entire life, the 72-year-old, who is named after his Marine dad, thought his father was one of the six men photographed by Joe Rosenthal on Feb. 23, 1945, raising that famous flag on Iwo Jima. But last month, people started reaching out to him when NBC News ran a story during the evening broadcast that said the Marine on the backside of the flagpole in the famous image was actually Cpl. Harold P. Keller -- not Gagnon's father. "We're in total culture shock," Gagnon told Military.com. "The whole family is impacted by this." Read more on Military.com.