I don’t know if an investigation will help, but I hope that there will be fewer suicides.  I bet that the recruiters feel guilty when soldiers they recruit end up dying in Iraq or Afghanistan.

Cornyn calls for hearings on Army recruiter suicides

U.S. Sen John Cornyn on Thursday formally requested congressional hearings to examine a recent rash of suicides among Houston-based Army recruiters, saying he believes the deaths demonstrate the enormous strain recruiters endure to sustain the country’s all-volunteer force. 
Or maybe they all have PTSD from being in the war in Afghanistan.
Four recruiters from the Houston Recruiting Battalion killed themselves between January 2005 and September 2008. All four were reassigned to recruiting duty after returning from tours in Iraq or Afghanistan. Recruiting has long been considered one of the military’s most stressful jobs, especially at a time when America is fighting two wars.