I believed it was Brutus, as he's the one giving the whole speech after the whole murder showdown went down but I'm not 100 percent sure on it. I would have to flip a book to it but that would take some time.
"I Am Prepared to Die" is the name given to the three-hour speech given by Nelson Mandela on 20 April 1964 from the dock of the defendant at the Rivonia Trial. The speech is so titled because it ends with the words "it is an ideal for which I am prepared to die".