Reporting with Natasha Korecki

With two brief witnesses, prosecutors are continuing to suggest more shady dealings between Patti Blagojevich and Tony Rezko's Rezmar Corp.

First, real estate agent Marianne Piazzi, and now FBI Special Agent Jane Ferguson, are testifying on the sales of properties owned by a Rezmar company.

They testify that Patti's real estate company, River Realty, accepted cash from Rezko without doing any work.

For the sale of a property at 1069 W. Chestnut, River Realty got more than $14,000, documents show.

In his cross-examination, defense attorney Sam Adam Jr. questioned Ferguson's knowledge of the River Realty documents, suggesting she doesn't know how old the documents are or who created them.