Michael Stravato / Associated Press
July 8, 2004
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.