Mr Chanachai confessed he killed the woman, who was the wife of his close friend, according to police. He and the victim had been romantically involved for a long time, but his friend was not aware of the relationship.
Mr Chanachai said he had become stressed out after committing the crime. He told a close friend what had happened. He was afraid the woman’s husband might take revenge on him if he discovered the truth, and also admitted he was addicted to drugs.