WASHINGTON (AP) — A retired Air Force officer who stormed the U.S. Capitol dressed in combat gear and carried zip-tie handcuffs into the Senate gallery was sentenced on Friday to two years in prison.

Larry Brock joined other rioters on the Senate floor only minutes after then-Vice President Mike Pence, senators and their staff evacuated the chamber to escape the mob attacking the building on Jan. 6, 2021.

U.S. District Judge John Bates also sentenced Brock to two years of supervised release after his prison term and ordered him to perform 100 hours of community service. Brock, who declined to speak in court before the judge imposed his sentence, remains free until he must report to prison at a date to be determined.

Prosecutors had recommended a sentence of five years in prison followed by three years of supervised release.

Bates convicted Brock in November after a trial without a jury. The judge said Brock expressed “very troubling” and violent rhetoric before the Jan. 6 riot. The judge read aloud several of Brock’s social media postings calling it “really pretty astounding” that a former high-ranking military officer expressed those words.

“That’s chilling stuff, and it does reflect a purpose to stop the certification of the election,” Bates said.

Brock believed baseless conspiracy theories that the 2020 presidential election was stolen from Republican incumbent Donald Trump, prosecutors said.

“When we get to the bottom of this conspiracy we need to execute the traitors that are trying to steal the election, and that includes the leaders of the media and social media aiding and abetting the coup plotters,” Brock wrote in a Nov. 9. 2020, post on Facebook.

In a Facebook message to another user on Christmas Eve, Brock outlined what he called a “plan of action if Congress fails to act” on Jan. 6. One of the “main tasks” in his plan was to “seize all Democratic politicians and Biden key staff and select Republicans.”

“Begin interrogations using measures we used on al-Qaida to gain evidence on the coup,” he wrote.

Brock, a Texas native who lived in the Dallas area, flew combat missions in Afghanistan before retiring from the Air Force as a lieutenant colonel.

His “plan of action” also called for a “general pardon for all crimes up to and including murder of those restoring the Constitution and putting down the Democratic Insurrection.”

“Do not kill LEO unless necessary,” he wrote, apparently referring to law enforcement officers.

Brock didn’t engage in any violence on Jan. 6, but prosecutors said his behavior was “disturbingly premediated.”

“Had the Senate Gallery not been emptied minutes before, Brock could have come face-to-face with the politicians he had fantasized about seizing and interrogating,” they wrote in a court filing.

Bates convicted Brock of all six counts in his indictment, including obstruction of an official proceeding, the Jan. 6 joint session of Congress for certifying President Joe Biden’s electoral victory, The obstruction charge is a felony; the other five counts are misdemeanors.

Defense attorney Charles Burnham said it is “inconceivable that (Brock) was motivated by anything other than genuine concern for democracy.”

“If Mr. Brock was sincerely motivated by high ideals, it significantly reduces his culpability even if the Court should privately disagree with his view,” Burnham wrote in a court filing.

Brock attended the “Stop the Steal” rally where Trump addressed a crowd of supporters on Jan. 6. He was wearing a helmet and tactical vest when he joined the mob that attacked the Capitol. He entered the building through Senate wing doors roughly 12 minutes after other rioters initially breached them.

On the floor near the East Rotunda stairs, Brock picked up a discarded pair of zip-tie handcuffs. He held the “flex-cuffs” in his right hand in the Senate gallery. On the Senate floor, he examined paperwork on senators’ desks.

“This was consistent with Brock’s stated overall mission on January 6, which was intelligence gathering to stop the certification and the transfer of power,” prosecutors wrote.

Brock graduated from the Air Force Academy in 1989. He was on active duty until 1998 and served in the reserves until 2014.

In a letter to the judge, a retired Air Force major general praised Brock’s military service. The major general, whose name was redacted from public court filings, said Brock risked his life to protect U.S. forces from a Taliban attack, flying below mountain peaks into a valley “saturated with enemy forces.”

“The result thwarted enemy advances on U.S. personnel, saved U.S. lives and defused an ever-escalating situation for the forces at that remote base in Afghanistan,” the major general wrote.

Brock was employed as a commercial airline pilot on Jan. 6. His lawyer said the Federal Aviation Administration revoked Brock’s licenses after his January 2021 arrest.

Approximately 1,000 people have been charged with federal crimes related to the Jan. 6 riot. More than 400 of them have been sentenced, with over half getting terms of imprisonment ranging from seven days to 10 years.