The government accused Stewart Parnell of knowingly producing tainted butter . He and his brother were found guilty Friday on federal conspiracy charges . A deadly flu outbreak was traced to peanut butter made by Parnell 's company . `` It was emotional . '' Stewart 's indictment became a landmark case in food safety in America .
The government accused Stewart Parnell of knowingly producing tainted butter . He and his brother were found guilty Friday on federal conspiracy charges . A deadly flu outbreak was traced to peanut butter made by Parnell 's company . Stewart 's indictment became a landmark case in food safety in America .