The most shocking revelation, however, was McKinsey’s decision to help companies sell more opioids when the abuse of those drugs had already killed thousands of Americans. Two senior partners discussed possibly purging records, apparently to hide their involvement. McKinsey agreed to pay more than $600 million to settle investigations by dozens of state attorneys general into the firm’s role in fanning the opioid epidemic. The firm also issued a rare apology, and fired the two employees, but said it did nothing illegal.

