It is the site Townhall's reporter Julio Rosas who took pictures and filmed the event from inside where Keller is seen, wearing an American Olympic jacket.

At least a dozen people in the sport of swimming have identified Keller, writes the swimming site Swimswam.

After the storm, Keller has deleted all his social media accounts, but before that he showed that he was a supporter of the now resigning president Donald Trump.

Keller participated in three Olympics, 2000, 2004 and 2008, and now works for a real estate agent.

But he had difficulty adjusting to life after swimming and was homeless for a period.

CLIP: The NFL legend says no to Trump's medal

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NFL legend says no to Trump's medal Photo: TT