Is the government keeping documents that could free a convicted Wall Street broker? He wants to know.

Ross Mandell is halfway through a 12-year federal prison term. The former Wall Street broker was convicted in 2011 of defrauding investors of $140 million dollars. But Mandell maintains his innocence, and is suing the government under the Freedom of Information Act for documents he claims might help clear his name. (MAry Altaffer/AP)