The memo specifically stated that McClendon, a 14-year JPMorgan veteran and former banker who was previously head of talent and career development, would support the "well-being and success" of junior bankers. The move shows how JPMorgan, the biggest American investment bank by revenue, is responding to the latest untimely death on Wall Street. In May, Bank of America's Leo Lukenas III died after reportedly working 100-hour weeks on a bank merger. Later that month, JPMorgan CEO Jamie Dimon said his bank was examining what it could learn from the tragedy.