Multiple local investigations are now underway and a Virginian congressman, Thomas Davis, has asked the Government Accountability Office to audit the district's tax outfit.

ECONOMIST: Corruption strikes the capital again

"When I'm out doing these trips I feel I'm doing something useful, " says software engineer Thomas Davis , 52, a cofounder of Silicon Graphics, who retired two years ago.

FORBES: Magazine Article

Mr Davis' attorney, Thomas Fitzpatrick, said his client was innocent and defended his right to take the Fifth Amendment, referring to the constitutional right against self incrimination.

BBC: Merrill fires two execs with Enron links