An Alabama man affiliated with the far-right Oath Keepers militia group pleaded guilty Wednesday to seditious conspiracy for his actions leading up and through the Jan. 6 riot, marking the first person involved in the violent attack on the U.S. Capitol to be convicted of the rarely used charge.

The sentencing guideline range for Joshua A. James, who also pleaded guilty to a charge of obstruction of an official proceeding, was estimated to be 7 ¼ to nine years in prison.