Staff Sgt . Calvin Gibbs is one of five soldiers charged with killing Afghan civilians . The U.S. military has been accused by the Taliban and others in Afghanistan of using excessive force against civilians. Gibbs was `` pretty much evil incarnate '' The Army is now looking into his role in the 2004 deaths of a family in Iraq .
Staff Sgt . Calvin Gibbs is one of five soldiers charged with killing Afghan civilians . A soldier in his platoon told investigators Gibbs was `` pretty much evil incarnate '' The Army is now looking into his role in the 2004 deaths of a family in Iraq .