Nobel prize winner Ralph Steinman's family, from left to right, daughter Lesley Steinman, wife Claudia Steinman, son Adam Steinman and daughter Alexis Steinman, speak at a ceremony honoring him at Rockefeller University in New York, Monday, Oct. 3, 2011. Ralph Steinman, a cell biologist, was awarded the Nobel Prize in medicine on Monday for his discoveries about the immune system but hours later his university said that he had been dead for three days. The Nobel committee had been unaware of Canadian-born Ralph Steinman's death.  (AP Photo/Seth Wenig)
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