Only Heaviest human in the world able to walk without assistance

Robert Earl Hughes is 1,071 lb (486 kg) and the only heaviest human who can walk without assistance. But could only walk 1200 meters an hour and needed to sit down/ or lean on his walking stick every few meters. he is the heaviest human in the world during his lifetime. He died on July 10, 1958, at the age of 32. Hughes contracted a case of measles, which soon developed into uremia, resulting in his death.