Billionaire energy mogul Bill Koch is looking to cash in on Aspen ... including homes in New York City, Palm Beach and Cape Cod. He also owns a 4,500-acre Colorado ranch featuring a 75-building ...

26-acre Cape Cod compound on the market last January for $28.7 million. Now, it appears that billionaire Bill Koch, sibling of Tea Party darlings David and Charles, has purchased the home for $19. ...