(FILES) Professor John Nash, winner of the Nobel Prize in Economic Sciences, was conferred an honorary doctorate of science at the City University of Hong Kong in this November 8, 2011, file photo. Nash and his wife, Alicia, were killed on May 23, 2015, when the taxi they were riding struck a guard rail on the New Jersey Turnpike, according to New Jersey State police. Nash’s life was the subject of the Oscar-winning film “A Beauitiful Mind.” Nash was 86; his wife was 82. AFP PHOTO / AARON TAM/FILES