U.S. DEPARTMENT OF DEFENSE News Spotlights About Herschel Walker speaks at Army Suicide Prevention Event U.S. Department of Defense sent this bulletin at 09/12/2012 02:10 PM EDT Herschel Walker speaks at Army Suicide Prevention Event 09/12/2012 10:55 AM CDT Heisman Trophy winner and former NFL running back Herschel Walker delivers remarks at the Army Suicide Prevention Month Health Care opening in the Pentagon center courtyard.