BEIRUT -- Turkey captured the elder sister of the slain leader of the Islamic State group in northwestern Syria on Monday, according to a senior Turkish official, who called the arrest an intelligence "gold mine." Little is known about the sister of Abu Bakr al-Baghdadi. The Turkish official said the 65-year-old known as Rasmiya Awad is suspected of being affiliated with the extremist group. He did not elaborate. Awad was captured in a raid Monday evening on a trailer container she was living in with her family near the town of Azaz in Aleppo province. The area is part of...