Simplify the following text for a Grade 9 native English-speaking person.
Original: Bryan Ezra Tsumoru Clay ( born January 3 , 1980 ) is an American decathlete -- the 2008 Olympic gold medalist and 2004 Olympic silver medalist .
Simplified: Bryan Ezra Tsumoru Clay ( born January 3 , 1980 ) is an American decathlete .