I am finishing David's book Second Suns and I am so moved by his mastery of language and eloquent ability to weave such an inspiring story that I felt compelled to learn more about the man writing this book. I was shocked and saddened to learn of his untimely death. I want to express to him and his family how appreciative I am that he shared his amazing talents with the rest of us. What an impact for good he has had on the world. Heartfelt condolences.