HAFIZABAD: A man killed his first wife at Kot Nakka on Sunday. Iftikhar Ahmad had contracted marriage with Zubaida Bibi about 10 years ago. The couple had three children from the wedlock. Later, Iftikhar contracted second marriage with Kiran of Pindi Bhattian, which led to a dispute between him and his first wife. On the day of the incident, Iftikhar with the help of his second wife Kiran allegedly poisoned Zubaida to death. Pindi Bhattian police have registered a case and started investigations.