An alleged member of the Oath Keepers militia group who was "among the first five or six" rioters to enter the U.S. Capitol Building on Jan. 6 is the first person to agree to take a plea deal, Fox News has learned.

Jon Schaffer has also agreed to cooperate against others involved in the riot, officials said.

Schaffer, 53, pleaded guilty to obstruction of an official proceeding and entering and remaining in a restricted building or grounds with a deadly or dangerous weapon.

He faces up to 30 years in prison if convicted, but Mehta said Friday sentencing guidelines call for 41 to 51 months in prison.

A sentencing hearing date has not yet been set. Schaffer was released and will be allowed some travel for work. He must stay out of Washington, D.C., other than for court-related matters and may not possess any firearms.

[link to www.foxnews.com (secure)]