Jume Tahir, who is also vice-president of the China Islamic Association, was stabbed to death outside the ancient mosque.
A State Department report hits out at religious controls in China.
The Uyghurs are ordered imprisoned between six months and seven years after a hushed-up trial.
Residents say discriminatory policies provoked the incident.
Police kill one Uyghur suspect and detain three others in the latest violence in the restive region.
The officer had recently been tasked to run an anti-terror campaign in the region.
College administrators distribute bottles of water and offer free lunches to students during Ramadan, and those who refuse are blacklisted.
Uyghurs are also being denied access to accommodation in Beijing, local rights activists say.
Authorities say he led a group that planned police station attacks.
He had spoken out in support of a longtime advocate for Uyghur rights.
Gas stations are banned from selling petrol in canisters, by police order.
She is concerned over his drastic weight loss.
His lawyers say he was shackled and deprived of food and adequate water.
Muslims attending mosques will be closely watched by neighborhood security teams.
A Uyghur suspect attacks them after he is allegedly tortured in police custody.
Authorities say she tried to incite the public by speaking out.
Ilham Tohti's lawyers are once more denied permission to meet with him.