In March 2017, Lawrence Obracanik, a former JPMorgan Chase & Co employee, pleaded guilty to criminal charges that he stole more than $5 million from his employer to pay personal debts. In June 2017, Matt Zames, the now-former COO of the bank decided to leave the firm. In December 2017, JP Morgan was sued by the Nigerian government for $875 million, which Nigeria alleges was transferred by JP Morgan to a corrupt former minister. Nigeria accused JP Morgan of being "grossly negligent".