Protests broke out in St Louis, in the US state of Missouri, after police shot dead black teenager Mansur Ball-Bey on Wednesday of last week.
Police initially reported that they shot the 18 year old because he aimed a weapon. But an autopsy showed he was shot in the back. His family deny he was armed.
The family has initiated a separate investigation from the police’s into the killing.
This shooting comes just weeks after the first anniversary of the killing of Michael Brown also in greater St Louis.