Wichean Noothong, 29, was shot dead by a .38 bullet fired from a home-made pen gun by Withaya Kongphetdit, who was later arrested for murder.
Both men were fighting over a woman named as Ploypyrin – Withaya is the woman’s ex-husband and Wichean was her new one.
Police reports say Ploypyrin and Wichean went to a funeral where they encountered Withaya. An argument broke out and Withaya shot Mr Wichean dead with the pen gun.
Police arrived at the house in Cherng Talay where Mr Wichean’s body still lay, and promptly arrested Withaya.