WESTMINSTER, S.C. - An 8-year-old boy and a 9-year-old boy have been charged with killing a man who was shot with a rifle while cutting down brush in a South Carolina field, authorities said.Both boys shot at Danny Andrew Smith with a rifle as he rode his tractor in the field near Westminster on June 23, Oconee County Sheriff Mike Crenshaw said.Smith, 62, was shot once in the back, but investigators charged both boys because they both fired the gun in Smith's direction, Crenshaw said.Get breaking news alerts in the free FOX5NY News app!The boys are charged as juveniles in Family Court and their names were not released.