An investigation by the state public utilities commission has concluded that top managers at PG & e knew about a case of an employee spying on smart meter activists. The finding disputes the claim by PG and E management that the employee acted alone. The employee, William devereux, resigned in 2010 after it was revealed that he had used a fake name to join an online group of residents that were against smart meters. The public utilities commission must now decide whether to fine PG & E.