Three people, including a woman and her son, were killed after unidentified men opened fire on a car in Kharian, the police said Tuesday.The victims were going back to their village after the hearing of a case when armed men targeted them, according to a police official.The 50-year-old deceased woman had been accused of murdering her husband, the official said.The bodies were shifted to a hospital and a case against unidentified men has been registered.