Goldstone told Trump Jr that the Aras Agalarov had met with the crown prosecutor of Russia who “offered to provide the Trump campaign with some official documents and information that would incriminate Hillary [Clinton] and her dealings with Russia and would be very useful to your father. This is obviously very high level and sensitive information but is part of Russia and its government’s support for Mr Trump—helped along by Aras and Emin.”
Trump Jr replied that "if it’s what you say I love it," and sought more information ahead of a proposed meeting.
http://www.newsweek.com/fbi-raided-manafort-over-records-trump-tower-meeting-russians-mueller-confirms-898389
Did they get information relevant to the upcoming boom?