One of my favorite movies is "The Untouchables." Elliott Ness is the hero, Al Capone is the villain. The entire picture is a portrayal of how Ness is trying to nail Capone and send him to prison. Capone seems to thwart him at every turn until Ness discovers the one person who can put him away—his bookkeeper.

The climatic scene in the train station is one of the most exciting I have ever seen, as the mob is trying to get the bookkeeper out of town while Ness is trying to stop them; and he succeeds only after a blazing gun battle ensues over one lowly bookkeeper.

You ask—what was so important about the bookkeeper? He is the star witness—the one person whose testimony can send Al Capone to prison and change his life forever. A star witness is the one witness for either side in a case that c…