Anger in US as Zimmerman walks free

Cleared by a Florida jury, George Zimmerman walked free from criminal charges in the shooting death of unarmed black teenager Trayvon Martin but was still under fire from civil rights leaders and critics who were dismayed by the verdict.

The six women jurors who deliberated for 16 hours over two days found Zimmerman not guilty of second-degree murder and manslaughter in a case that has polarised the US public.

President Barack Obama says the death of Martin was a tragedy for America.