Lu Sifeng and his wife, Zhang Aiying, sit on their bed lost in thought after learning that their son, 25-year-old Lu Huakua, has died from injuries sustained during an attack by a Uighur mob, during the July 5, 2009 riots in Urumqi. The couple, originally from Henan, had moved to Xinjiang a couple of years earlier and found work selling fruit and vegetables.
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