Thailand: Gunman killed grandparents before school attack

A deadly shooting spree at a school outside Bangkok has ended after police said the suspected gunman, a 14-year-old student, killed himself. Authorities say the teenager began the rampage at home, where he shot his grandparents, before heading to the school. Police say the gun belonged to his grandfather and that the teenager fired 26 rounds, with another 34 rounds of ammunition found on him. No…