One of the key suspects in the Wirecard scandal involving 1.9 billion euros (2.2 billion dollars) in non-existent funds will cooperate with German prosecutors, his lawyer confirmed to dpa on Friday.”My client has handed himself into the proceedings of his own accord and stands by his individual responsibility, unlike others,” said the lawyer, who represents the chief executive officer of the Dubai-based Wirecard subsidiary Cardsystems Middle East.The executive is currently being held in pre-trial detention.The man’s lawyer stressed that there had been no confession of wrongdoing, refuting a pr…