Gunman killed grandparents before going to school

The suspected students also killed his grandparents before going to school. They were found dead at home, authorities say. The 9mm handgun he used belongs to his grandfather, who was a teacher, police say. Police had earlier said that six people were killed in school shooting, but authorities have now clarified that four others have been killed so far in the school, all of whom were teachers. The suspected gunman has also been found dead.