Francisco Illarramendi pleaded guilty in March 2011 to several counts of fraud and conspiracy to obstruct justice.
As the director of several funds in Stamford, prosecutors say Illarramendi lied repeatedly to investors and creditors as he tried to cover up investment losses exceeding half a billion dollars, taking USD 20 million for himself, including USD 5 million to build a lavish home in New Canaan.
Prosecutors have urged US Judge Stefan Underhill in Bridgeport to sentence Illarramendi to at least 12 years in prison. Illarramendi argues he deserves no more than six months of home confinement in addition to the time he's already spent in jail.
He was initially free on bail but Underhill ordered him locked up after the court discovered in January 2013 that he spent a state tax refund without disclosing it.
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The 45-year-old son of a former Venezuelan diplomat, Illarramendi has lived in the US for years and developed an expertise in Latin American financial markets, serving for a time as an adviser to Venezuela's oil company.
Venezuelan officials have said that the state oil company, Petroleos de Venezuela, ended a contract with Illarramendi in 2004, a year before the scheme began.