The FBI "has completed the initial search identifying approximately 50 cross-reference serials, with attachments totaling over 20,000 pages, in which Seth Rich is mentioned," Assistant U.S. Attorney Andrea Parker wrote in the message to attorney Ty Clevenger, who is representing a plaintiff in Huddleston v. Federal Bureau of Investigation, a case dealing with a Freedom of Information Act request to the bureau.

"FBI has also located leads that indicate additional potential records that require further searching," Parker added.

The Epoch Times confirmed the email is legitimate.

Parker, who is representing the FBI in the case, didn't respond to an email or return a voicemail.

The bureau also confirmed it has files from Rich's laptop and suggested it still has the computer in its possession.

The bureau is "currently working on getting the files from Seth Rich's personal laptop into a format to be reviewed," Parker said in the email. She also said the FBI plans on undertaking some level of review of the computer.

The disclosure came as part of a case brought in federal court by Texas resident Brian Huddleston, who filed a Freedom of Information Act request in April asking the FBI to produce all data, documents, records, or communications that reference Seth Rich or his brother, Aaron Rich.

The FBI told the plaintiff in June that it would take 8 to 10 months to provide a final response to the request, prompting the filing of the case in the U.S District Court for the Eastern District of Texas.