To: O.J. Simpson You scumbag and coward. You should have shot yourself in the Bronco--Coward! Responding to this letter, written by a self-described ``average middle-aged housewife,'' Simpson wrote, ``I want to state unequivocally that I did not commit these horrible crimes.'' He added, in a book published last Friday, that he would have jumped in front of a bullet for his dead ex-wife Nicole--or a train, for that matter. The thin volume, the issue of a fat-figured deal ($1 million), is a brilliant sliver of disingenuousness called I Want to Tell You and subtitled My Response to Your Letters, Your Messages,...

