`  ==Bernard Madoff lawsuit== The bank served as the principal institution for Bernard Madoff and currently in litigation over $6.4 billion.(See: ``Madoff trustee readies amended JPMorgan lawsuit``)  ==Nicholas Tyrell== Former Managing Director and Head of European Real Estate Research and Strategy at JP Morgan Asset Nicholas Tyrrel overdosed on heroin in April 2011. (See: ``Investment Banker Died After Accidentally Overdosing On Heroin Tea``)  ==Money laundering== In 2001, a U.S. Senate staff report named the institution in a money laundering report.(See: ``Dirty-Money Flow in U.S. Banks Is Huge, a Senate Report Finds``)`