FILE - In this Aug. 24, 2010 file photo Gilbert Lopez Jr., the ex-chief accounting officer for one of Stanford's companies, arrives at the federal courthouse in Houston. Lopez, one of

... more 

FILE - In this Aug. 24, 2010 file photo Gilbert Lopez Jr., the ex-chief accounting officer for one of Stanford's companies, arrives at the federal courthouse in Houston. Lopez, one of the last two defendants convicted for helping disgraced financier R. Allen Stanford bilk investors out of more than $7 billion in one of the biggest Ponzi schemes in U.S. history, was sentenced to 20 years in prison during a hearing Thursday, Feb. 14, 2013 in Houston. (AP Photo/David J. Phillip, File) less