GUJRANWALA  - A woman on Wednesday killed her ex-husband after a brawl in Gujranwala, local media reported.Rizwana Kauser allegedly shot dead her husband Assad Hassan, Deputy Director Planning, after a brawl.  Police rushed to the spot and arrested Kauser and her child. Kauser said that she gunned down Hassan as she was fed up with daily quarrels with her ex-husband.