Scott G. Barnett, 24
Military officials initially announced that Barnett was killed in combat Jan. 28, in Tallil, Iraq, south of Baghdad. Army officials later said his death was not combat-related and was under investigation. His wife, Nikki, was his high school sweetheart. They shared tastes in music, taking in every Linkin Park concert they could. Nikki, who battled non-Hodgkin's lymphoma as a teenager, took him on cancer fundraising walks.
Sources: Times research, Defense Department, iCasualties.org