Who was Jessica Savitch? Millions of TV viewers knew her as the glamorous and authoritative NBC News anchor who was a role model for scores of aspiring women journalists. To her colleagues on the set, however, she was an anorexic, acne-scarred prima donna who would throw tantrums over the slightest inconvenience or reject a glass of water because it was too warm. And to those who claimed to know her best, she was a vivacious and vulnerable woman who became so debilitated by insecurity and drug abuse that she could barely function without a nursemaid. When Savitch's end finally came in...