Hedge fund billionaire Kenneth Griffin paid $85 million to expand his land holdings in wealthy Palm Beach with an oceanfront site. Linda J. Saville and Paul C. Saville sold the 4.18-acre site at 1290 S. Ocean Blvd. to Blossom Way Holdings, controlled by Griffin in Chicago. The founder and CEO of Citadel LLC, Griffin’s net worth was pegged by Forbes at $7.8 billion. Paul Saville is the president and CEO of homebuilder NRV Inc.