As photos rang out on Tuesday evening, hundreds of consumers fled the crowded posh store in terror.
A person from China and another from Myanmar were killed, and a total of seven people were shot.
The 14-year-old think is accused of carrying and firing a firearm in people, having an unregistered firearm, and attempted murder.
He had formerly been receiving therapy for a mental condition but had stopped taking treatment, according to police. He is currently undergoing clinical tests to see if he is healthy to stand trial.
In a nation flooded with both legal and illegal arms, the shooting has sparked new calls for stricter gun control.
It happened just before the first anniversary of the deadliest murder in Vietnamese modern history, in which 24 children and 12 adults were killed when an ex-policeman attacked a hospital in the region’s north brandishing his weapon and knife.
One gun for every seven people and one of the highest prices of equity in the region are thought to be in circulation in Thailand, according to an international databases.
A soldier killed 29 people in a store rampage at Nakhon Ratchasima in 2020.
Srettha Thavisin, the prime minister of Thailand, vowed on Wednesday to implement” proactive measures” to avert more tragedies.