Database: shooting
Question: Which type of weapon was used to attack the victim in the record number 031347-2015? What is the victim's race and gender?
SQL: SELECT T1.subject_weapon, T2.race, T2.gender FROM incidents AS T1 INNER JOIN subjects AS T2 ON T1.case_number = T2.case_number WHERE T1.case_number = '031347-2015'