The brother of the Peckham-based journalist held in Russia over piracy charges has told ITV News there is a small comfort in seeing Kieron Byron on video footage obtained, but it was still difficult to see him in a courtroom "where he does not understand what is going on".
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The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.
Mayor of Newham Sir Robin Wales criticised the International Olympic Committee on the fourth anniversary of the opening ceremony.