A man believed to be associated with an anti-government group attempted to attack a courthouse in north Georgia Friday morning, but was thwarted by a sheriff's deputy, who was shot in the incident.

Authorities have searched the home of the suspect, Dennis Marx, and found pipe bombs and other incendiary devices.

Piper said Marx's home is "a bomb." Evidence shows he has not been living there for more than a week and has been staying at a hotel. He said it will take hours to clear the courthouse and the home.

The gunman's attorney told Channel 2 she was representing him until Thursday, when she withdrew because he was unsatisfied with her negotiating skills. He was due in court on Friday for marijuana and firearms charges. The attorney said the man was a gun buyer and trader.

The attorney said she asked the man to undergo a psychological evaluation, but he refused.

According to the Atlanta Journal-Constitution report, a law enforcement official familiar with the situation said explosives are suspected because Marx is a "sovereign citizen" well-known to local authorities. They are concerned about explosives because sovereign citizens are anti-government and are known to be involved with explosives. Marx also claimed in court documents to be a professionally-trained, certified Glock armorer.

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Chairman Jason Shaw presides over a meeting of the Georgia Public Service Commission in Atlanta on Tuesday, July 15, 2025. (Ben Gray for the AJC)

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