A U.S. House committee says Washington Commanders owner Dan Snyder conducted a “shadow investigation” that sought to discredit former employees making accusations of workplace sexual harassment. The committee released a memo ahead of a hearing Wednesday. The Committee on Oversight and Reform is investigating the Commanders’ workplace culture following accusations of pervasive sexual harassment by team executives of women employees. Snyder declined to testify at the hearing, but the committee plans to issue a subpoena to compel a deposition. NFL commissioner Roger Goodell told the committee that Snyder “has been held accountable.”