On October 28, 2014, the State Department formally asked Clinton for copies of all her work-related emails, after asking informally for several months. Three lawyers working for Clinton, Cheryl Mills, David Kendall, and Heather Samuelson, then sorted Clinton’s emails into those they deemed work-related or personal.
According to a later FBI report, “on or around December 2014 or January 2015, Mills and Samuelson requested that [Platte River Networks (PRN) employee Paul Combetta] remove from their laptops all of the emails from the July and September 2014 exports. [Combetta] used a program called BleachBit to delete the email-related files so they could not be recovered.” PRN is the computer company managing Clinton’s emails at the time.
The FBI report will explain, “BleachBit is open source software that allows users to ‘shred’ files, clear Internet history, delete system and temporary files and wipe free space on a hard drive. Free space is the area of the hard drive that can contain data that has been deleted. BleachBit’s ‘shred files’ function claims to securely erase files by overwriting data to make the data unrecoverable.”
Combetta then remotely connects to the laptops of Mills and Samuelson using the computer program ScreenConnect to complete the deletions. Clinton’s emails are being stored in a .pst file. Combetta will later tell the FBI “that an unknown Clinton staff member told him s/he did not want the .pst file after the export and wanted it removed from the [Clinton server]” as well.
The Clinton emails are deleted from the laptops of Mills and Samuelson around this time. But another copy of all the emails exist on the server. Combetta will delete those emails as well, in late March 2015. (Federal Bureau of Investigation, 9/2/2016)