Ex-WorldCom Inc. financial chief Scott Sullivan was sentenced to five years in prison for assisting in the $11 billion business fraud at WorldCom.

NEW YORK (CNN/Money) - Ex-WorldCom Inc. financial chief Scott Sullivan's unfinished estate in suburban Boca Raton has sold for less than half its original asking price, according to the New York Post Thursday.

The 10-bedroom, 12-bath mansion with a boathouse, dock and wine cellar went for $9.7 million although asking price was once $22.5 million, the paper said.

According to the Post, the buyer is Daniel Katz, a Milwaukee developer who is selling his current home in nearby St. Andrews Country Club. Among Katz's new neighbors will be Boston Red Sox owner John Henry.

Sullivan, who started building the mansion five years ago at the peak of WorldCom's boom but never got to move in, agreed to turn over the proceeds from the unfinished estate as part of his deal to cooperate with prosecutors.

Sullivan was sentenced last week to five years in prison for his role in the $11 billion accounting fraud at WorldCom.

WorldCom, now known as MCI, filed the largest bankruptcy in U.S. history in 2002. The company's collapse led to billions of dollars in losses for shareholders and employees.

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