Diahann Carroll, the captivating singer and actress who came from the Bronx to win a Tony Award, receive an Oscar nomination and make television history with her turns on Julia and Dynasty, has died Friday. She was 84. Carroll was known as a Las Vegas and nightclub performer and for her performances on Broadway and in the Hollywood musicals Carmen Jones and Porgy & Bess when she was approached by an NBC executive to star as Julia Baker, a widowed nurse raising a young son, on the comedy Julia. As the sultry fashionista Dominique Deveraux ... Carroll played a much...