Francis Crick (1916-2004)

Francis Crick, co-discoverer of the double helix of DNA, has died. In 1962, Crick shared the Nobel Prize in Physiology or Medicine for uncovering the secret of life.

"Evolution is cleverer than you are." -Francis Crick

Link

Update: Crick's groundbreaking 1953 paper on the molecular structure of DNA, co-authored with James Watson, is available here. (Thanks, Christina!)