WASHINGTON — An F.B.I. informant who was embedded for months in the inner circle of Stewart Rhodes, the leader of the Oath Keepers militia, is likely to testify as a defense witness at the seditious conspiracy trial of Mr. Rhodes in connection with the attack on the Capitol on Jan. 6, 2021.
The informant, Greg McWhirter, served as the Oath Keepers’ vice president but was secretly reporting to the F.B.I. about the group’s activities in the weeks and months leading up to the Capitol attack, according to two people familiar with the matter.
Yeah, I was thinking of the FBI
https://www.nytimes.com/2022/11/08/us/politics/oath-keepers-trial-january-6.html