A Tennessee man who was previously charged in connection with the Capitol riot is now facing conspiracy and other charges after allegedly obtaining a copy of a list of law enforcement personnel who played a role in his criminal investigation and discussing plans to kill them, according to a court filing unsealed Friday.

The criminal complaint against Edward Kelley, 33, of Maryville says he obtained the names of law enforcement personnel involved in the probe that led to his initial arrest, and discussed plans to kill them and attack the FBI’s field office in Knoxville. Austin Carter, 26, of Knoxville is listed as a co-defendant.

The pair was charged with conspiracy, retaliating against a federal official, interstate communication of a threat, and solicitation to commit a crime of violence.

Kelley and Carter made their initial appearance in federal court in Knoxville on Friday.

Kelley was already facing charges in U.S. District Court for the District of Columbia after he was arrested in Knoxville on May 5 on allegations that he assaulted a law enforcement officer during the Jan. 6 riot at the Capitol. He was released a week later on a personal recognizance bond.

According to the new court filing, the FBI’s Knoxville office had opened an investigation and assigned agents to Kelley’s case after receiving information about his potential involvement at the Capitol on Jan. 6.

A cooperating witness earlier this week presented authorities with a printed document including about 37 names, positions and in some cases phone numbers of law enforcement personnel involved in the criminal investigation, the filing states. The list also identified which officers were present when Kelley was arrested in May, according to the filing.