Eight of the company's officials pleaded guilty to securities fraud.

Little noticed, he pleaded guilty to securities fraud in November 2002.

He later pled guilty to expense account fraud and served a conditional 10-month sentence.

He pleaded guilty to securities fraud and is in prison in Hawaii.

He pleaded guilty to securities fraud and conspiracy in February 2010.

On 28 November 2007, the three accepted a plea bargain, pleading guilty to one count of wire fraud.

His brother pleaded guilty to one count each of mail fraud and commodities fraud.

Gupta was found guilty of conspiracy and three counts of securities fraud on June 15, 2012.

He was imprisoned in 1995 after pleading guilty to tax fraud.

In November 1995, he pleaded guilty to one count of mail fraud - the worst crime possible under existing law.