Our Staff reporter NANKANA SAHIB - A man killed his sister when she refused to go back to her husband's house here the other day. As per detail, Muhammad Mansha, a resident of Thatha Wattowan Asil Bar situated in the jurisdiction of Mangtanwala Police married off his daughter Fazilat Bibi to Muhammad Ramzan, a resident of Dhari Noor Ahmed, some six years ago. In exchange Zariana Bibi, sister of Ramzan was married with Muhammad Nawaz, the son of Muhammad Mansha. The other day, Fazilat Bibi came back to her parents house after developing some differences with her husband. Upon which his brother Muhammad Nawaz forced her to go back to his husband house which she refused flatly. Meanwhile, her brother infuriated opened fire at her, killing her on the spot. The police have registered a case against accused.