A surveillance video of Dennis Marx allegedly staging a bizarre attack on the Forsyth County Courthouse in Cumming, Ga., on June 6 has been released.
Marx, who called himself a "sovereign citizen," drove up the courthouse steps in an SUV and opened fire with an AR-15 rifle, according to reports (video below).
"He came in there with the purpose of occupying the courthouse,” Forsyth County Sheriff Duane Piper told NorthFulton.com. "It was a full-frontal assault."
Marx, who wore a gas mask and body armor, reportedly tossed tear gas canisters and orange smoke grenades.
Marx allegedly wounded Deputy Daniel Rush in the leg in the beginning of the attack.
However, Marx would not survive as law enforcement shot and killed him within minutes.
Marx had a hand grenade wired on himself as a booby trap, reported the Associated Press. Law enforcement also found bombs, zip-ties and two handguns in Marx's SUV. Police also found a checklist at Marx’s house that matched what they found in the SUV.
"All the items were checked off," Forsyth County Sheriff's Office Deputy Doug Rainwater told the Associated Press. "So this was a very deliberate planned assault on the Forsyth County courthouse."
Marx, who had multiple felony charges against him, was scheduled to be in court that day to plead guilty in a drug case.
"We're trying to piece everything together," added Deputy Rainwater. "Him driving to the courthouse and doing what he did at the same time he was supposed to be in court is an indication that's related."