[redcatcherb412]

Also, any evidence out there that Rich knew Linux?

With even the easiest linux variant there is a choice of multiple GUI interfaces to use. They all emulate Windows icons/menus close enough most folks using it can easily boot from the USB, mount a local or a network drive and drag-n-drop files.

[nicollo]

There you have it, whoever did this must have known Linux... I have no idea what you just wrote. :)

[Cboldt]

To me, the trickier part, once "in the system" either via Linux (which is a way to bypass the access security built into an e.g. native MSWindows system) or via Win, is to know the location of the files.

An to make that point clear, what I am saying is that this would be tricky to me, personally, not that it's tricky per se. It just takes some time to learn where the emails are stored.