A federal grand jury has indicted a Harrison man on 11 charges after he was arrested in a raid on his home late last month.

The grand jury indictment against Thomas Dorn, 39, of Harrison’s Natrona neighborhood adds eight counts of interstate threats and a single count of threatening to assault and murder a federal official.

The indictment alleges Dorn threatened to shoot his postal carrier and then shoot up his post office.

Federal authorities previously charged Dorn with two counts of making interstate threats for allegedly leaving violent, menacing voicemails.

Federal prosecutors allege Dorn continually menaced two unnamed victims, including a judge, with extremely violent, expletive-laden voicemails as part of a legal dispute over supposed lost wages.

According to transcripts in the indictment documents, Dorn threatened to shoot the victims with guns he owned and seemed to be handling a rifle while speaking during one of the calls.

A large, forest green armored SWAT vehicle was parked outside of Dorn’s home at 21 Pine St. on Oct. 28. Several SWAT team members in green camouflage gear were seen going in and out of the house as well as searching for something in heavy foliage near the front door. Dorn was led out in handcuffs.

Federal authorities say they seized seven rifles, four pistols, firearm suppressors and other equipment from Dorn’s home. As part of the indictment, prosecutors said they would seek to have Dorn forfeit the firearms if he were convicted.

According to a U.S. Justice Department release, Assistant U.S. Attorney Brendan J. McKenna will prosecute the case.

A federal magistrate judge found that Dorn presented a danger to the community and ordered him detained pending trial, the release said.

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