When Sarah Gray found out she was pregnant with twins, her joy was quickly tempered by sadness when she received the devastating news that one of her unborn sons, Thomas, had anencephaly, a terminal condition. But she was determined to find positive meaning in Thomas's life and death, so in the weeks before she gave birth to her twin sons, in 2010, Sarah arranged to donate his organs, eyes, and blood to medical research. So began her incredible, heart-wrenching...