Two more people have pleaded guilty of defrauding the state of tax credits in an investigation the Attorney General promises will keep digging further. Maryland residents Willie Adams and Maxine Allen have pleaded guilty to faking equipment purchases for a phantom business in St. Louis to tap into the Rebuilding Communities Tax Credit Program. The two admit to receiving $75,000 a year from the State Economic Development Department three years in a row. Attorney General Jay Nixon says they are cooperating in his office’s on-going investigation. The two had claimed they bought used computers from Electronics and More of St. Louis, but the purchases were never made. Two others who pleaded guilty earlier made the same claim to tap into the program. The Rebuilding Communities Program is suppose to attract high-tech companies to poor areas. Allegations of impropriety have been confined to St. Louis.