The owner of a hair salon surrendered to police and was being held in custody after an unhappy customer and her husband were stabbed to death in Pathum Thani over the weekend.
Police charged Prasart Rangyai, 51, the owner of Pimmy Hair Salon at a Lotus superstore mall in Muang district.
Mr Prasart turned himself in to police about 11pm on Saturday after a man and woman were murdered in the mall near his salon about 3pm that day.
According to police, he said that he stabbed them after they refused to leave his shop and threatened to sue him and file a complaint with the Lotus mall management.
Warisara Wimulrakchart, 41, was fatally stabbed in her chest and her husband Weerapong Pumpruek in his neck, in front of their horrified 8-year-old daughter. Both were TV actors.
They both died at the scene of the attack.
The couple's eldest daughter, aged 20, said that her mother earlier told her that a hairdresser had cut her hair too short and in the wrong style.
Kwang, the 27-year-old hairdresser who cut Warisara's hair last Thursday, said she had already apologised to the woman, who also had another branch of the salon fix her hair.
Later, the client returned with her husband to speak with the shop owner.
The dead woman's father said his daughter returned to the shop for a talk with the shop owner after they had argued over the phone.
Security camera footage showed the killer drawing a knife from his pocket while he was standing and talking with the couple. He stabbed each victim once.
Mr Prasart was charged with premeditated murder and illegal possession of a weapon in public.
