Missouri Governor Jay Nixon has decided not to attend today's funeral of Michael Brown "out of respect for the family".
A spokesman for the governor said relatives "deserve time to focus on remembering Michael and grieving their loss".
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The plight of Honduran migrants searching for safety has been harshly criticised by the US president.
Avicii, whose real name was Tim Bergling, was found dead in Muscat, Oman on Friday, according to his agent.
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