Marines killed in training were young, lives ahead - Article Photos 13/25

In this undated photo released by Eastern Connecticut State University, Marine Roger Muchnick poses for a photograph while in school in Conn. Muchnick 23, with the 2nd Marine Expeditionary Force from Camp Lejeune, N.C., was killed with 6 other Marines after mortar shell exploded during a training exercise at the Hawthorne, Nev., Army Depot. (AP Photo/Eastern Connecticut State University)