Sentence for negligent killing is at judge's discretion
                                
                                
                                    (Newser) -
                                    Oscar Pistorius has been found guilty of culpable homicide, or negligent killing, in the death of girlfriend Reeva Steenkamp, the  AP  reports. South African Judge Thokozile Masipa found the athlete not guilty of  murder or premeditated murder . Sentencing will begin Oct. 13, reports  CNN , which says a typical sentence for...