An ex-McKinsey & Company partner has filed suit against the global consulting firm, alleging the company “knowingly lied” to the federal government in an attempt to scapegoat the plaintiff and distance itself from the opioid crisis.

Dr. Arnak Ghatak claims the firm and its leader, Bob Sternfels, misled Congress and improperly deleted records while under investigation for its work with companies such as Purdue Pharma.

Sign of McKinsey & Co., management-consulting firm. Photo: Lionel Bonaventure/AFP/Getty Images via Bloomberg Photo: Lionel Bonaventure/AFP/Getty Images via Bloomberg