Johannesburg - A man shot his wife dead before killing himself at the Parkview police station in Johannesburg on Tuesday morning, police said."It is alleged that the victims came to the client service centre in connection with a domestic violence dispute," Lieutenant Colonel Lungelo Dlamini said."While they were busy with the domestic violence forms, the man, 47, went out of the client service centre to fetch his reading spectacles. Unknown to the police officers attending to them, he suddenly came back and shot his wife, 45, in the upper body."While police officers were trying to disarm him, he also shot himself in the upper body. A revolver was used."Dlamini said the circumstances surrounding the shooting were being investigated."Counselling will also be arranged for the police officers who were attending to the victims at the client service centre."