A lawyer for Dewey & LeBoeuf CFO Joel Sanders on Thursday sought to undermine the testimony of cooperating witnesses in the fraud case against him and former Dewey executive director Stephen DiCarmine, saying the witnesses changed their stories under the threat of indictment.

Manhattan assistant district attorney David Drucker, meanwhile, asked the jury to convict Sanders and DiCarmine on charges they participated in a fraudulent scheme to make the firm’s finances look better to lenders and investors in the years before Dewey’s 2012 bankruptcy.