Protesters clashed with riot police in Missouri overnight after police reports released earlier said a black teen was a suspect in the theft of cigars from a store minutes before an officer shot him dead.
Racially charged protests in the Missouri town of Ferguson entered their sixth night since the death of Michael Brown on August 9.
Highway Patrol Captain Ron Johnson said police fired a teargas canister at a crowd near a food and liquor store and broader violence and looting erupted.
There remains little clarity surrounding the moments leading up to Brown's death.
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A judge ruled the boy may be allowed home from Alder Hey Children’s Hospital, but will not be allowed to go to Rome for further treatment.
Alek Minassian, 25, has been charged with first degree murder.
The president, meanwhile, thanked the French leader for his “steadfast partnership” in the recent missile strike in Syria.