Info here from Sundance is quite interesting. He suggests the mystery man is Stephan Halper. He is a Brit but has a house in Virginia.Lots of links in the article that are worth a read.
“Halpers September 2016 outreach to Papadopoulos wasnt his only contact with Trump campaign members. The 73-year-old professor, a veteran of three Republican administrations”
I’m leaning towards Halper too...anyone tied to 3 Republican Administrations (meaning at least one Bush, probably both) almost certainly HATES TRUMP...perfect guy to use to take Trump down.
http://www.freerepublic.com/focus/f-news/3654314/posts?page=92#92
http://www.freerepublic.com/focus/f-news/3654314/posts?page=73#73
Many thanks for those posts & link !