Pongo's theory...
Yep, no question, he was killed for doing something hundreds have done before. Those pesky NASA guards guarding the edge, infected him with a bacterial infection.
Now to confirm this, we need some evidence. What have we got.
A 55 year old guy raising money for charity, fails to cross Antarctica and collapses from fatigue and exhaustion, later dies in a hospital in Chile.
He raised $142,000 for the Endeavour Charity.
So the reality.
The guy is a hero in anyone's language, and deserves to be honoured. Not used to further crackpot theories about flat earth.