Jiye Sindh Tehreek (JST) Chairman Shafi Karnani was killed by unknown target killers on Wednesday. Karnani was going back to his home from fields when three unidentified men opened fire near Makli bypass. Shafi got critically injured and was shifted to Civil Hospital Thatta where he succumbed to his injuries. Police have started investigations and have placed checkposts in different areas of the district to trace out the killers.