(Juma Tayir speaks during an interview at Id Kah Mosque in Kashgar in this still image taken from video dated August 3, 2011. Three suspected Islamist militants armed with knives and axes killed Tayir, the imam of China's biggest mosque in the western region of Xinjiang, on July 31, 2014, the authorities said, days after a knife-wielding gang attacked state buildings in the same region. All three attackers, who were named by the government, had ethnic Uighur names and the imam, Tayir, was a well-known pro-government Uighur who led prayers at the Id Kah Mosque in the old Silk Road city of Kashgar. REUTERS/ Reuters TV )

(Juma Tayir speaks during an interview at Id Kah Mosque in Kashgar in this still image taken from video dated August 3, 2011. REUTERS/Reuters TV )