The former chief operating officer of Dewey & LeBoeuf, Dennis D’Alessandro, told prosecutors he was unaware of inappropriate accounting at the firm and did not believe his colleagues were doing anything illegal.

The disclosure of D’Alessandro’s statements turned over to the defense by the Manhattan District Attorney’s office comes less than two months before trial is set to begin against three former Dewey leaders: ex-chairman Steven Davis, former executive director Stephen DiCarmine and chief financial officer Joel Sanders.