Computer hacker Gary McKinnon's mother Janis Sharp said she was "overwhelmed" after a 10-year battle against extradition which had been "an emotional rollercoaster".
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London arts and textiles teacher Andria Zafirakou beat 30,000 others from 170 countries to be crowned winner at the ceremony in Dubai.
Kent Police said they believe the driver had been asked to leave the club following an altercation.
Emergency services were called to South Street in Enfield this morning, but the victim was pronounced dead around 30 minutes later.