The real unsung hero who's died recently though is Norman Borlaug, often called the greatest man in the universe. He's saved billions, and I mean BILLIONS of lives...have you heard of him? If not, you should. Here's a Wikipedia article about him as well as a video of his appearance on Penn and Teller's "Bull****!". FYI, the video does have some questionable language, so keep that in mind if something like that bothers you.
Norman Borlaug - Wikipedia, the free encyclopedia