The guy is a yacht broker from Florida, which somehow comes as no surprise:
Steven Michael Rubinstein, of Boca Raton, Fla., has been charged, via criminal complaint, with filing a false income tax return, the Justice Department and Internal Revenue Service (IRS) announced today.
According to court records, Rubinstein is a chartered accountant who works for an international company that assists clients to build, buy and sell yachts. On or about April 9, 2008, Rubinstein filed a U.S. Individual Income Tax Return Form 1040 for tax year 2007 which he signed under the penalties of perjury. The tax return failed to report that Rubinstein had an interest in, or signature authority over, a financial account at UBS in Switzerland. Additionally, Rubinstein failed to report the income he earned on any UBS Swiss bank accounts.
According to court records, Rubinstein was the beneficial owner of UBS accounts in the name of Hybridge International Ltd., a nominee British Virgin Island corporation.