A prosecutor says she will not hold a hearing to determine if a Florida neighbourhood watchman should be tried for shooting dead unarmed black teenager Trayvon Martin.
Angela Corey says her office is still investigating the incident. She could file charges or drop the case.
George Zimmerman gunned down the 17-year-old during a confrontation at a gated community in Sanford, Florida.
Mr Zimmerman, 28, claims the shooting in February was a case of self-defence.
Police in Sanford have refused to arrest Mr Zimmerman, saying they found no evidence to contradict his account.
Florida's self-defence law, known as "stand your ground" grants individuals scope to use deadly force they feel they are in danger.
The case has attracted national attention, leading to protests around the US and a debate about race - Mr Martin was black while Mr Zimmerman is the son of a white father and Hispanic mother.
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