From the DOD website for the Military Health System,
please read this month's profile of Maj. Gen. Mark Graham and his wife Carol,
..."two individuals who have survived the tragic suicide of one of their sons and the death of another in combat, and then channeled their grief into a campaign to prevent other service members from taking their own lives. "
You can find out more HERE
and This Link on the same website lists many,many resources across the Armed Forces.