A third Marine Corps investigation into the identities of the six second flag-raisers concluded in October 2019, that Keller was in the Rosenthal's photograph in place of Rene Gagnon (fifth from left). Gagnon who carried the larger second flag up Mount Suribachi, helped lower the first flagstaff and removed the first flag at the time the second flag was raised. Photos and video footage showed that the person (Keller) who had been thought to have been Gagnon was wearing a wedding ring; at the time, Keller was married and Gagnon was not. The person (Keller) also did not have a facial mole; Gagnon did. The Marine Corps photo taken by Private Robert Campbell which showed both flags on top of Mount Suribachi verified that Keller was actually the person thought to have been Gagnon. The identities of the other five flag raisers including Schultz were confirmed. Like Schultz, Keller never publicly mentioned that he was a flag-raiser or that he was in the photograph.