Sad to report.
"It is with deep sorrow and a heavy heart that I inform you that our beloved friend and colleague, Jimmy Lee, unexpectedly passed away this morning," JPMorgan Chairman and CEO Jamie Dimon said in a statement. "Jimmy was a great friend, leader and mentor to me and so many others."
James B. Lee Jr. led the company's investment banking arm, and was known for his work on the syndicated loan market among other things.
"As Vice Chairman of our company and former head of our Investment Bank, Jimmy made an indelible and invaluable contribution to our company, our people, our clients and our industry over his nearly 40 years of dedicated and selfless service. Jimmy was a master of his craft, but he was so much more-he was an incomparable force of nature," Dimon said in his statement.
Lee is survived by his wife Beth, and three children-Lexi, Jamie and Izzy-according to Dimon's statement.