Attorneys for a group of news organizations, including NPR, said in a legal filing on Tuesday that evidence used at the sentencing of a rioter charged in the Jan. 6, 2021 attack on the U.S. Capitol had “disappeared” from an online government platform.

The missing evidence consists of nine video exhibits from the Justice Department’s case against Glen Simon, who pleaded guilty to a charge of “Disorderly and Disruptive Conduct in a Restricted Building or Grounds.” Simon said as part of his plea that he pushed against police officers with a metal bike rack, stormed the U.S. Capitol and recorded himself saying “this is what a revolution looks like,” and, “we gotta show these f****** we ain’t f****** around. It’s the only way to get it done. Fear!”