Former Enron CEO Kenneth Lay is led into federal court in July 2004. He was convicted in May 2006 of securities fraud, conspiracy and lying to banks in a corruption case that led to the energy company's demise. The case -- one of the worst frauds in business history -- is synonymous with willful corporate fraud and corruption. Lay died in July 2006 before he could be sentenced.
Michael Stravato / Associated Press
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