For some families, this Memorial Day will be especially hard. Their loved ones -- spouses, parents, sons and daughters -- didn't die the hero's death. They were one of 160 soldiers last year who committed suicide, despite the military's unprecedented effort to stem the tide.
How does it happen? After surviving harrowing combat, why would a young soldier decide to take his or her own life? The Army is spending $50 million to figure it out, and we may get an answer in a couple of years. But for some, that will be too late.















































