dry day in seattle, near 70. midwest at 70s and 80s. and phoenix is the hot spot at 98 degrees. o.j. simpson has taken the stand to plead hids case for a brand new trial. simpson testified that he relied on the advice of his trusted attorney, and that turned out to be a mistake. abc s brandi hitt is in las vegas. reporter: with a shrug of the shoulders, o.j. simpson headed straight to the witness stand to give the performance of his life, testifying for his freedom. i wouldn t have thought in my wildest dreams that these guys would have guns. reporter: the former football great hopes the judge will decide he deserves a new trial for his 2008 armed robbery and kidnapping conviction on the basis that his former lead attorney, yale gallanter mishands his case on many details. did you trust mr. gallanter? yes. reporter: simpson said gallanter advised him simpson had the legal right to confront two men who had sports memorabilia simpson maintains