New details about the gunman who opened fire at a crowded mall near Dallas, as the community holds a vigil to honor the victims. Also, TODAY celebrates nurses from New York Presbyterian and Weill Cornell Medical Center. Plus, Diana Keaton, Jane Fonda, Candice Bergen and Mary Steenburgen in studio 1A to talk about their roles in the new movie “The Book Club: The Next Chapter.” And, Andy Cohen shares his story of becoming a dad as he releases his new book “The Daddy Diaries.”