Keller, who now lives in Pennsylvania, is an ex-Marine who served in Iraq, but he was a combat photographer there, and not a sniper.

WSJ: NY subject of prizewinning photo questions ethics

In conferring the medal, President Barack Obama described the conditions faced by Romesha and 52 other soldiers when they came under attack from mortar, rocket-propelled grenade, machine-gun and sniper fire on October 3, 2009, at Combat Outpost Keating in the mountains of eastern Afghanistan.

CNN: Medal of Honor recipient conflicted by joy, sadness