Tycoon and Dallas Mavericks owner who sold Broadcast.com to Yahoo for $5.9 Billion in 1999. He invested in a variety of start-ups as a result of being a panelist on ABC's Shark Tank, many of which later turned out to be successes.
He worked as a bartender, disco dancing instructor, and party promoter before getting into high-tech companies.
He married Tiffany Stewart in 2002 and together they had three children.
His Mavericks won the 2011 NBA Championship behind star German forward Dirk Nowitzki.