Javier Olvera, 20
Reared in the San Fernando Valley, Olvera spent his youth playing soccer with brothers. He enlisted in the Marines the year he graduated high school. A rifleman and radio operator, Olvera was killed "as a result of a hostile incident while conducting combat operations" in Helmand province, on the Pakistani border. His family said they were told he was killed by an improvised explosive device.
Sources: Times research, Defense Department, iCasualties.org