https://archive.is/0SzDr This is in my list of stuff to take a look at later. An anonymous post on slashdot posted a bunch of links and called it "Independent verification of FBI Anon claims." Calling it that doesn't make it true, but I haven't gotten around to digging in and verifying any of it.
Go back and tell him to burn his employer and scrub anything that could identify him from the evidence.
Omnicom was mentioned in GG. There was talk of them owning Publicis, Kroll, and Ketchum which was said to be Putin's PR agency. They had a hand in movements.org and supposedly had links to EA, Scholastic, and CommonCore. No one provided evidence or did any further looking into them.