NEW YORK (Reuters) - Law-enforcement authorities are investigating whether funds are missing from a money-management firm, Bayou Securities LLC, that claimed to be overseeing $440 million in investments, the Wall Street Journal reported on Thursday. The newspaper, citing people familiar with the matter, said the Connecticut Department of Banking is looking into the company, which is based in Stamford, Connecticut. Federal prosecutors also are investigating, a person familiar with the matter said. A spokesman for the Securities and Exchange Commission declined to comment to the newspaper. The Journal said red flags went up in recent weeks when some investors...