Heartbreaking: Sonogram Shows Twin Holding Hand of Dying Brother

<p>A sonogram captures twins holding hands. One day the pair will be brother and sister except doctors told the parents to-be they don't think the little boy will make it. He has a hole in his heart and an abnormal brain. If he makes it through the pregnancy, doctors will deliver them by C-section. If he doesn't make it, the family says they're comforted knowing his sister will be by his side.</p>