At least five people were killed at a school near Thailand’s capital Bangkok on Friday morning after a student went on a gun rampage, with the tragedy shocking the nation and reopening questions over access to firearms.The 14-year-old suspect had killed his grandparents before opening fire at the Debsirin Nonthaburi School, about an hour outside the capital, and then took his own life, officials said.Those killed at the school were all teachers and staff, and police said the shooter fired at least 26 bullets using a gun that ‌belonged to his grandfather. An additional 34 rounds were found.Police said 23 people were wounded in the incident.At least 7 dead in Thai school shootingThe boy appeared to have shot his grandparents first before attending school as normal, said Royal Thai Police spokesman Police Lieutenant General Trairong Phiwphan. After class started, the boy opened fire inside his classroom before walking out and continuing to shoot.Trairong said the teen fired more than 20 shots and over 30 rounds were found on him after he shot himself.