Thai school shooter learnt how to use guns via social media

A teenager who opened fire at his home and school in Thailand, killing eight people and himself, had taught himself how to use a gun via social media, police have said.

Evidence that police have gathered include the firearm used by the teen in the shooting, cartridge cases, his mobile phone and a knife found in the bag he had carried to school.

Authorities say the student at the Debsirin Nonthaburi School - a local branch of a prestigious secondary school - had shot dead his grandparents at home using a handgun owned by his grandfather, before heading to school where he opened fire at teachers and students.