GRAPEVINE, Texas (CBSDFW.COM/AP) – North Texan Larry Brock who was allegedly seen holding zip ties inside the Senate Chamber of the U.S. Capitol during the Jan. 6 assault, made his first federal court appearance on Monday, Jan. 11.

Grapevine Police released his mugshot a short time later.

READ MORE: Appeals Court Ruling Keeps Abortion Ban In Place In Texas

Larry Brock (credit: Grapevine PD)

Brock was arrested and charged on Sunday, Jan 10, with one count of knowingly entering or remaining in any restricted building or ground without lawful authority and one count of violent entry and disorderly conduct on Capitol grounds.

Brock was identified in photos showing him standing in the well of the Senate, wearing a military-style helmet and body armor while holding a pair of zip-tie handcuffs.

Protesters enter the Senate Chamber on January 06, 2021 in Washington, DC. Larry Brock is at the top left in the photo. (Photo by Win McNamee/Getty Images)

According to an affidavit, his ex-wife was one of the people who told the FBI they recognized Brock from photos taken at the Capitol.

She told authorities, “I just know that when I saw this was happening I was afraid he would be there. I think you already know he was there. It is such a good picture of him and I recognize his patch.”

Brock is a retired Air Force Lieutenant Colonel.

He confirmed to “The New Yorker” magazine he was involved in the breach and was holding zip ties.

He said he picked up the restraints to give to a police officer and regrets it.

READ MORE: Amtrak Train From Fort Worth Crashes In Oklahoma, Four Hurt

The Associated Press reviewed social media posts, voter registrations, court files and other public records for more than 120 people, including Brock, either facing criminal charges related to the Jan. 6 unrest or who, going maskless during the pandemic, were later identified through photographs and videos taken during the melee.

The evidence gives lie to claims by right-wing pundits and Republican officials such as Rep. Matt Gaetz, R-Fla., that the violence was perpetrated by left-wing antifa thugs rather than supporters of the president.

“If the reports are true,” Gaetz said on the House floor just hours after the attack, “some of the people who breached the Capitol today were not Trump supporters. They were masquerading as Trump supporters and, in fact, were members of the violent terrorist group antifa.”

Steven D’Antuono, the assistant director in charge of the FBI’s Washington field office, told reporters that investigators had seen “no indication” antifa activists were disguised as Trump supporters in last Wednesday’s riot.

The AP found that many of the rioters had taken to social media after the November election to retweet and parrot false claims by Trump that the vote had been stolen in a vast international conspiracy.

Several had openly threatened violence against Democrats and Republicans they considered insufficiently loyal to the president.

During the riot, some livestreamed and posted photos of themselves at the Capitol.

Afterwards, many bragged about what they had done.

(© Copyright 2021 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

MORE NEWS: Critical Race Theory Law Could Be Behind Latest Southlake Racism Controversy