LOL, it did come from Weiner's device.
Indeed, the information came from both Wiener's unit
and Huma's unit.
Which lends us new and unpleasant insight into the Huma/Hillary relationship...
Seriously, though .... this means they got to Huma's e-mails by other means, and now they've got Wiener's e-mails, too (making me wonder why they'd be relevant to the e-mail case).
Any immunity deal with Huma relative to the e-mail is case probably does not extend to the Wiener investigation, so those e-mails and her culpability for same are probably open to investigation/indictment (if warranted).
I guess the FBI is investigating Wienergate because he's alleged to have been in contact with underage girls.