A millionaire heiress died at age 12 in December, and the world is just finding out now. Don't feel too bad, though. Trouble Helmsley, perhaps the world's most pampered pet, was 84 in dog years when she succumbed to illness and died, according to the New York Daily News. She also, unbeknownst to her, outlasted several vows to bring her to a more violent end. Trouble received multiple death threats from people angry that her doting owner, billionaire real estate tycoon Leona Helmsley, left her a stunning $12 million in her will. While Trouble hit the jackpot, Helmsley also unceremoniously...