Golfer Mickelson not charged in insider trading case, will pay back $1 million

By Joseph Ax NEW YORK (Reuters) - Late in July 2012, Phil Mickelson, one of the world's most famous golfers, received a phone call from a well-known professional sports gambler, William "Billy" Walters. At the time, U.S. authorities say, Mickelson owed Walters a gambling debt, and Walters had a hot stock tip: buy shares in the food company Dean Foods Co. Four days later, Mickelson owned $2.4 million worth of Dean Foods shares, according to the U.S. Securities and Exchange Commission. Mickelson t