A former investment advisor from Marietta, Georgia has been hit with a nearly eight-year federal prison sentence for operating a colossal Ponzi scheme that swindled over 400 investors, leaving many penniless. John J. Woods, who is 58, was sentenced after a 13-year con that defrauded investors to the tune of over $49 million, according to the U.S. Attorney’s Office for the Northern District of Georgia.