A Syrian-based mullah already wanted in Germany and Italy has emerged as a leading suspect behind the Istanbul bombings that killed 61 people, including the British consul general. Damascus-based Mohammed Majid has a long history of involvement with extremist groups in Europe and is said to have financed a string of recent terror attacks across the Middle East. He has also been linked to efforts by Islamic fundamentalists to infiltrate Iraq. British and Turkish investigators believe that Majid's network of sympathisers in Syria is sheltering five figures involved in last month's attacks on the British consulate and a branch of...