Maltese professor Joseph Mifsud - who bragged last November that he was a member of the European Council on Foreign Relations and the Clinton Foundation, told Trump campaign aide George Papadopoulos on April 26, 2016 that Russia had "dirt" on Hillary Clinton weeks before Papadopoulos would drunkenly repeat the same rumor to Australian diplomat Alexander Downer on May 10.
Downer's subsequent report to "five eyes" authorities resulted in the launch of Operation Crossfire Hurricane - the FBI/DOJ's counterintelligence investigation into the Trump campaign. Recall that former FBI agent Peter Strzok flew to London to meet with Downer in the summer of 2016.
Mifsud has been missing since October, 2017 - while Papadopoulos was just sentenced to a grand two week stint in prison for lying to the FBI about his contacts with the Maltese professor.
The DNC stood by its claim in a statement to The Hill on Friday. The committee indicated that an investigator had been used to find Mifsud, who has been missing for months, and was told the Maltese professor may be dead.