Police later arrested an 18-year-old who lives close by. Because of his age they gave his name only as Chai.
Chai said that he had had a long-standing problem with the brother of the Noprit Chareurit, 20, the dead man.
He told police he called Noprit to see whether some solution could be reached. Noprit arrived and when Chai approached, punched him in the face.
Chai said he defended himself with his knife, slashing at Noprit and cutting the brachial artery in Noprit’s right arm.
Noprit ran away bleeding heavily towards Samkong Market, but only got about 200 meters before the loss of blood made him collapse. He died on the roadside.