Mark Graham, a retired Army major general, speaks about suicide as a photo of his sons is shown during the Heroes and Healthy Families Leadership Awareness Conference at the Bob Hope Theatre aboard Marine Corps Air Station Miramar, Calif., Sept. 12. Jeff, a 2nd lieutenant, left, who died when an improvised explosive device detonated while he tried to warn his platoon of the device in 2004. Kevin, right, a senior Army Reserve Officers' Training Corps cadet took his own life in June 2003 while studying to become an Army doctor at the University of Kentucky.