evidence: Elon Musk documents subpoenaed in Jeffrey Epstein lawsuit - Published [...] Epstein, a financier, had been a client of JP Morgan from 2000 to 2013. Mr Musk was also been a customer - with JP Morgan in charge of Tesla's commercial banking business for several years. Mr Musk tweeted on Monday that the suggestion that he taken advice from Epstein was "idiotic" and called the late financier a "dumb crook."