bbc documentary: http://news.bbc.co.uk/2/hi/americas/7493000.stm
has a 45.01 pr from 2007 osaka. Had a 47.xx pr in 2005. He seems to be on a linear progress over the years, cutting roughly a second every year. Is it possible this guy could go 44 flat at Beijing? He appears to have better 200 basic speed than the other bronze hopefuls, christopher and brown. Judging off this video: http://www.youtube.com/watch?v=fNF9-33mgTM