Homeless man leaves $4 million estate

Do you remember Jean Preston, the unassuming librarian who'd amassed an $8 million estate? Or Helene Whitlock Alley, the $100 donor that bequethed $7.3 million to a diabetes group. Well here's another entry in the never underestimate anyone category: Richard Walters. Perhaps you've heard his name on NPR: "Support for NPR comes from the estate