The man was sentenced to four months in prison this week after federal prosecutors argued that he was a white supremacist and should have received a harsher sentence.
The man pleaded guilty to entering and staying in a restricted building. As the government works to prosecute the nearly 900 people arrested in connection with the siege, prosecutors have offered some rioters lesser charges in exchange for their guilty pleas.
The judge sentenced the man to four months, as well as one year of supervised release and a $500 fine.
One of the first people arrested in relation to the insurrection was Betancur. According to court documents, Betancur was already a convicted criminal when he was sentenced for violating the terms of his supervised release.
Prosecutors say that in order to get permission to attend the "Stop the Steal" rally, he lied to his supervisor. He wanted to leave the state so that he could distribute Bibles on behalf of the Christian group.
According to charging documents, he told his officer that he would be home by curfew. He was caught thanks to the tracker on his ankle. In his plea agreement, he admitted that the Bible story was a lie.
Prosecutors said that it wasn't the first time that Betancur had lied. During a pro-Trump rally in Washington, DC, in December 2020, he joined members of the Proud Boys, but instead of telling the same story, he joined them.
Prosecutors said that he posed with a Confederate flag and wore a Proud Boys shirt during the Capitol siege. The furniture that was removed from the Capitol was later used as weapons against law enforcement, according to court documents.
According to prosecutors, the FBI does not believe that he has ever been associated with the Proud Boys. Prosecutors said in an affidavit that he had previously made comments about conducting a school shooting and that he was a self-identified white supremacist.
An attorney didn't reply to Insider's request for comment.
More than 340 people have pleaded guilty for their roles in the Capitol riot.