Informant Likely to Testify as Defense Witness in Oath Keepers Sedition Trial A man who served as No. 2 to Stewart Rhodes, the group’s leader, is said to have secretly reported to the F.B.I. in the months leading up to the Jan. 6 attack. 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,...