Paul Mullen passed away at his home in Savannah, Georgia, on December 24, 2009. Paul had been our graduate student and remained our friend. His sense of humor was legendary: mordant, witty, and always to the point. His untimely death brought to an end a life filled with accomplishment. Paul Mullen had managed to fill his life with several careers. His first career had been as an attorney. As well as working in private practice for several years, he also was Assistant Attorney General for the state of West Virginia. He specialized in labor law and was head of the section in the Attorney General's Office responsible for litigation in that field.