Article continues below advertisementConvicted child trafficker and Jeffrey Epstein co-conspirator Ghislaine Maxwell sent a mysterious USB drive to the Department of Justice via FedEx, just one week after First Lady Melania Trump delivered a baffling bombshell address at the White House.Maxwell, who is serving a 20-year sentence at FCI Bryan in Texas for child s-- trafficking, sent a "mystery USB" on April 16 addressed to Jay Clayton, the U.S. Attorney for the Southern District of New York.