A real-estate agent might have bought Ken Griffin's cell phone number from a former FBI employee to facilitate the $240 million sale of a New York City condo

The sale of a huge Manhattan condo to a billionaire financier put Tal and Oren Alexander at the top, but they’d been working their way up much longer.

A real-estate agent might have bought Ken Griffin’s cell phone number from a former FBI employee to facilitate the $240 million sale of a New York City condo