A man murdered his estranged wife, who had filed for divorce from him, and committed suicide in Simalchaur, Pokhara of Kaski district on Wednesday, police said. Sanjeev Nepali (24) of Kichnas-3, Syangja, had married Sonam Regmi (22) of Pauwaigaude-2, Syangja, four years ago. But the couple witnessed sourness in their conjugal life.