Terrible day, the world losing both Naguib Mahfouz and Melvin Schwartz. Schwartz was many things, a professor at Columbia, Nobel-prize winner in 1988 for the discovery of the muon neutrino, and a major figure in the history of Brookhaven. He was both a scientist there (i.e. the neutrino work) as well as an administrator (overseeing the RHIC project in its early stages!).
Just a point left out of the obituaries: I never met him (he had left the field again by the time I got my PhD), but I always enjoyed his book on electrodynamics. It was one of the more elegant descriptions of the physics and mathematics that I had seen up to that time (1991). And it was cheap -- god bless Dover.