This Friday, Seymour Benzer passed away. Benzer was a very important person in the history of molecular biology - among his other accomplishments he probed the fine structure of a gene and mapped the rII locus of bacteriophage (I think it was phage Lambda). Every student in genetics learns about his work but most dont know of him by name. It's a shame. The work he did as part of the famous "phage group", along with Luria and Delbruck, eventually lead to Crick and Sydney Brenner to establish the triplet code for DNA translation.
This comes not long after the loss of Arthur Kornberg. Its been a bad winter for molecular biology.