Mckinsey & Company Has Agreed To Pay $650 Million Following A Federal Investigation Into Its Work With Purdue Pharma To Promote Oxycontin Sales During The Opioid Crisis. This Marks The First Time A Consulting Firm Has Faced Criminal Charges For Advising A Client Engaged In Criminal Activity. Former Senior Partner Martin Elling Will Plead Guilty To Obstruction Of Justice After Destroying Related Documents. Mckinsey Will Implement Strict Compliance Measures And Cease Work Related To Controlled Substances For Five Years. The Case Reflects The DOJ’s Efforts To Hold All Parties Accountable In The Opioid Epidemic.