Scott Aznar News Today

this is the "cbs evening news" with scott pelley. >> pelley: good evening, roger clemens walks. late today a federal jury in washington found the former star pitcher not guilty of lying to congress when he testified that he never used steroids in his 24 seasons in the majors. its another failure for the government in its pursuit of athletes in the steroid scandal. an earlier attempt to convict clemens ended in a mistrial and last year home run king barry bonds was convicted of only one...

i put a lot of hard work into that career. >> reporter: central to the case were allegations that clemens used performance-enhancing drugs. clemens long denied the charges, but it was his testimony to congress under oath in 2008 which led to charges he lied to protect his legendary career. >> let me be clear: i have never taken steroids or h.g.h. >> reporter: but in court prosecutors insisted clemens had used steroids and h.g.h.--tai jn growth hormone-- and called two key witnesses to ...