. . . "American businessman" . . . "Walter, Mark"@en . . "Mark Walter"@en . . . "Mark Walter is a founder and the chief executive officer of Guggenheim Partners, a privately held global financial services firm with more than $170 billion in assets under management and headquarters in Chicago and New York. He is also the Chairman of the Los Angeles Dodgers Major League Baseball franchise."@en . "1960Z"^^ .