Late March 2016: Guccifer talks to the FBI while he is extradited to the US.

The Romanian hacker Guccifer is extradited to the US at some point in late March 2016.

In early May 2016, he will claim that on the airplane ride from Romania to the US, “They came after me, a guy from the FBI, from the State Department.” Fox News will report, “A government source confirmed that the hacker had a lot to say on the plane but provided no other details.”

Guccifer will also claim that he talked about some large data files he kept in secure locations as a sort of insurance policy: “I can’t tell now. I can’t tell because I want to talk to the FBI. It is a matter of national security.” However, he seems to indicate the data is not connected to the FBI’s Clinton investigation. (Fox News, 5/7/2016) 

Guccifer has also said he’s talked to US officials since his arrest in Romania in January 2014, including with the FBI in March 2014. (LawNewz, 5/6/2016)