In 2010, Sarah Gray received the news expectant mothers fear most – one of the twin sons she was carrying wasn’t going to live. In her tragedy, though, she saw opportunity for others and arranged for Thomas’ organs to be donated to medical research. This hour, we’ll talk with her about visiting labs at Harvard, Duke and elsewhere to witness the potentially lifesaving studies Thomas’ body was a part of. She writes about the experience in, “A Life Everlasting: The Extraordinary Story of One Boy’s Gift to Medical Science” (HarperOne).