Mike Gilbert, who served as O. J. Simpson's sports agent for a reported 18 years, is writing a book for Regnery Publishing called How I Helped O. J. Get Away With Murder. According to a brief announcement published this afternoon on industry Web site Publisher's Lunch, the book will "detail O.J.'s late-night confession" and offer new evidence showing that Simpson did kill his ex-wife Nicole Brown and her boyfriend Ron Goldman. The book also promises "information on Gilbert's crucial role in obtaining the not guilty verdict and why he stayed silent for so long."