BANGKOK – The parents of a 14-year-old student who opened fire at Debsirin Nonthaburi School faced police questioning this weekend. Key TakeawaysA 14-year-old student killed his grandparents before fatally shooting six people, including a 12-year-old girl, at his school. Searching for the Teenage Shooter’s MotiveInvestigators are now working tirelessly to understand what drove a 14-year-old boy to commit such extreme violence. Previous pledges for stricter gun laws have completely failed to prevent repeated mass shootings in recent years. Just last year, another 14-year-old boy killed two people at a luxury shopping mall in downtown Bangkok.