Boris Nikolic exchanged emails with Jeffrey Epstein on multiple occasions, including on March 3, 2011 [1] [5], and May 4, 2015 [2] [3]. In one email, Boris Nikolic mentioned that a promissory note was set to expire on May 15th [2] [3]. Boris Nikolic also discussed a potential deal with Jeffrey Epstein, offering to pay $300,000 plus upside [4]. Additionally, Boris Nikolic sent an email to Jeffrey Epstein on March 2, 2012 [6]. Boris Nikolic used a Windows Phone to send some of his emails [1] [4]. Jeffrey Epstein sent emails to Boris Nikolic from his iPhone [1] [5].