Tim Montgomery once held the title of world’s fastest man, now the 33-year-old American could be holding a different title, world’s fastest prisoner. Montgomery, already serving a 46-month sentence for passing fraudulent checks, admitted to dealing heroin and could be facing another five-year sentence when he returns to court on Oct. 10. It was three years ago that Montgomery’s world came crashing down after being busted for steroids. The Olympic relay champion was quickly banned from athletics and lost his 100m record.