Mandy Moore was emotionally affected after Caroline Kennedy's daughter Tatiana Schlossberg revealed her terminal cancer battle. "Her story and her exquisite way with words absolutely shattered me," Moore, 41, wrote via her Instagram Stories on Saturday, November 22. "To have this grace and vulnerability in the face of what she and her family are battling is impossible to fathom." Schlossberg, 35, announced in an essay for The New Yorker titled "A Battle With My Blood," published earlier on Saturday, that she was diagnosed with acute myeloid leukemia. She has been given one year to live.