WASHINGTON (AP) A North Carolina man pleaded guilty Thursday to plotting with other members of the far-right Proud Boys to violently stop the transfer of presidential power after the 2020 election, making him the first member of the extremist group to plead guilty to a seditious conspiracy charge.

Jeremy Joseph Bertino, 43, has agreed to cooperate with the Justice Departments investigation of the role that Proud Boys leaders played in the mobs attack on the Capitol on Jan. 6, 2021, a federal prosecutor said. U.S. District Judge Timothy Kelly agreed to release Bertino pending a sentencing hearing, which wasnt immediately scheduled.

Bertino also pleaded guilty to a charge of unlawfully possessing firearms in March 2022 in Belmont, North Carolina. Kelly accepted his guilty plea to both charges during a brief hearing after the case against Bertino was filed Thursday.

Justice Department prosecutor Erik Kenerson said estimated sentencing guidelines for Bertinos case recommend a prison sentence ranging from four years and three months to five years and three months. The Civil War-era seditious conspiracy charge carries a maximum sentence of 20 years in prison.

Former Proud Boys national chairman Henry nrique Tarrio and four other group members also have been charged with seditious conspiracy for what prosecutors say was a coordinated attack on the Capitol to stop Congress from certifying President Joe Biden s 2020 electoral victory over Donald Trump .

Bertinos cooperation could ratchet up the pressure on other Proud Boys charged in the siege.