From CNN, July 2016...
This was not his first time investigating the Clintons [Comey]
Nor his second. The email server probe marked the third time Comey has investigated Bill or Hillary Clinton.His first run-in came in the mid-1990s, when he joined the Senate Whitewater Committee as a deputy special counsel. There he dug into allegations that the Clintons took part in a fraud connected to a Arkansas real estate venture gone bust. No charges were ever brought against either Clinton..."
"In 2002, Comey, then a federal prosecutor, took over an investigation into President Bill Clinton's 2001 pardon of financier Marc Rich, who had been indicted on a laundry list of charges before fleeing the country . ..."
http://www.cnn.com/2016/07/07/politics/who-is-james-comey-fbi-director-things-to-know/index.html
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"The Whitewater controversy (also known as the Whitewater scandal, or simply Whitewater) began with investigations into the real estate investments of Bill and Hillary Clinton and their associates, Jim and Susan McDougal, in the Whitewater Development Corporation, a failed business venture in the 1970s and 1980s."
Whitewater Convictions
Jim Guy Tucker: Governor of Arkansas at the time, removed from office (fraud, 3 counts)
John Haley: attorney for Jim Guy Tucker (tax evasion)
William J. Marks, Sr.: Jim Guy Tucker's business partner (conspiracy)
Stephen Smith: former Governor Clinton aide (conspiracy to misapply funds). Bill Clinton pardoned.
Webster Hubbell: Clinton political supporter; Rose Law Firm partner (embezzlement, fraud)
Jim McDougal: banker, Clinton political supporter: (18 felonies, varied)
Susan McDougal: Clinton political supporter (multiple fraud). Bill Clinton pardoned.
David Hale: banker, self-proclaimed Clinton political supporter: (conspiracy, fraud)
Neal Ainley: Perry County Bank president (embezzled bank funds for Clinton campaign)
Chris Wade: Whitewater real estate broker (multiple loan fraud). Bill Clinton pardoned.
Larry Kuca: Madison real estate agent (multiple loan fraud)
Robert W. Palmer: Madison appraiser (conspiracy). Bill Clinton pardoned.
John Latham: Madison Bank CEO (bank fraud)
Eugene Fitzhugh: Whitewater defendant (multiple bribery)
Charles Matthews: Whitewater defendant (bribery)
Ultimately the Clintons were never charged, but 15 other persons were convicted of more than 40 crimes, including Bill Clinton's successor as Governor, who was removed from office.[40]
http://en.wikipedia.org/wiki/Whitewater_%28controversy%29#Convictions
or,
https://web.archive.org/web/20090326122112/http://en.wikipedia.org/wiki/Whitewater_%28controversy%29