Special counsel John Durham published potentially conclusive evidence in the case against former Clinton campaign lawyer Michael Sussmann on Monday night, showing alleged text messages the cybersecurity lawyer sent to the FBI general counsel that he wasn’t working for any client when he provided information to the bureau.

Durham’s team charged Sussmann last year with lying to the FBI when he presented information about former President Donald Trump to former FBI General Counsel James “Jim” Baker in late 2016. Sussmann allegedly concealed that he was working for the Democratic National Committee, Hillary Clinton’s 2016 campaign, and tech executive Rodney Joffe when he provided claims that the Trump Organization had a secret link with a Russian bank, which the FBI later said was not credible.

“Jim – it’s Michael Sussmann. I have something time-sensitive (and sensitive) I need to discuss,” Sussmann allegedly wrote to Baker, according to the late-night court filing (pdf). “Do you have availibilty [sic] for a short meeting tomorrow? I’m coming on my own – not on behalf of a client or company – want to help the Bureau. Thanks.”