A Colorado man was sentenced to prison Thursday for assaulting an officer and disrupting Congress during the Jan. 6 riot at the U.S. Capitol.

The U.S. Attorney’s Office said Patrick Montgomery, 51, of Littleton, was sentenced to 37 months in prison and 36 months of supervised release after pleading guilty to assaulting law enforcement while interrupted a joint session of the US Congress.

The Federal Bureau of Investigation said Montgomery was identified by three informants who saw him in videos and social media posts from inside the Senate chambers.

According to the criminal complaint filed in US District Court in Washington DC, Montgomery posted a series of updates on his social media accounts that showed his trip to Washington DC, scenes outside the Capitol and images from inside the Senate chambers.

During Montgomery’s trip to Washington DC, court documents said he met with co-defendants Brady Knowlton and Gary Wilson at the Yours Truly hotel. The three men then went to the “Stop the Steal” rally near the Washington Monument and the Ellipse.

After the rally, the three men walked to the west front of the U.S. Capitol building and crossed into a restricted perimeter, court documents state.

Just after 2 p.m., Montgomery grabbed an officer’s baton and tried to wrestle it away from him. During the altercation, Mongomery punched the police officer in the chest, documents state.

After the fight, the three men entered the Capitol building through doors with an “emergency exit only” sign as an alarm sounded and people screamed.

“We stormed the Senate,” Montgomery posted on his Facebook page. “The door to that Transparency Chamber has opened!”

Court documents show Montgomery and his co-defendants entered the Senate gallery around 2:43 p.m. and confronted a U.S. Capitol Police officer before leaving the building about 10 minutes later.

One of the informants reported Montgomery to DC police and the FBI on January 7 and told Montgomery he had done so in an email.

“I’m not a scaredy cat and I don’t run away from anything,” Montgomery replied. “I am so deeply covered by the best Federal Defense attorneys in the country, in case you whining boys don’t want to defend our freedom from these corrupt politicians.”

Montgomery continued: “I didn’t violently storm the castle. My group was let in peacefully by the police who I spoke to respectfully. I came and left peacefully before the anarchist and Antifa showed up smashing S*** and being thieves.”

The FBI arrested Montgomery in Colorado on January 17, 2021.

Montgomery is one of 1,532 people who have been charged in the Jan. 6 riot and one of 571 people who have been charged with assaulting or obstructing law enforcement, which is a felony, authorities said.