South Korea's Byun Hui-su had been fighting to get reinstated
                                
                                
                                    (Newser) -
                                    She was declared unfit to serve in her country's army after having sex reassignment surgery, the first active-duty soldier to have such a procedure. Now, Byun Hui-su is dead, her body found Wednesday at her residence in Cheongju, South Korea, per the  Yonhap News Agency . Emergency responders found the...