December 11, 2015: Emails from Clinton’s computer technician are missing.

The State Department has told Senate investigators that it cannot find the emails of Bryan Pagliano, the Clinton aide who managed her private server. Department officials found a “.pst file” which contains back-up copies of Pagliano’s emails from the time period after Clinton was secretary of state, but his .pst file for Clinton’s time as secretary of state is missing. But it is also revealed that the FBI has taken possession of Pagliano’s government computer, and it is hoped that some of all of the emails will be found there. Senate investigators want the email to help determine if Pagliano should be offered immunity in return for testimony. (Politico, 12/11/2015) 

However, it will later emerge that Pagliano was given immunity by the FBI some months earlier. (The New York Times, 3/3/2016)