Pier Antonio Panzeri, a former EU lawmaker entangled in a corruption investigation in the European Parliament, has signed a cooperation agreement, Belgium’s state prosecutor said in a statement on Tuesday. Panzeri is to make “substantial, revealing, truthful and complete statements” about the corruption probe linked to Qatar, including his own involvement and other participants, the statement read. The former EU lawmaker is to give details about the financial arrangements with other involved countries, the financial structures set up, and “the identity of the persons he admits to having bribed…