A Downers Grove man who purported to offer financial investment services to the public was indicted by a federal grand jury for allegedly engaging in a two-year Ponzi scheme that resulted in losses totaling approximately $3.5 million when it collapsed last month. The indictment alleges that David J. Hernandez fraudulently induced some 290 victims to invest approximately $12 million through his business, NextStep Financial Services, Inc., and several related companies. Hernandez was charged with four counts of mail fraud in an indictment that was returned late yesterday and announced today by Patrick J. Fitzgerald, United States Attorney for the Northern District of Illinois, and Robert D. Grant, Special Agent-in-Charge of the Chicago Office of the Federal Bureau of Investigation. Hernandez, 48, of Downers Grove, was initially charged with a single count of mail fraud in a criminal complaint filed in U.S. District Court in Chicago on June 17, several days after FBI agents executed a sea...