The Antioch man responsible for putting the U.S. Capitol's Visitor Center on lockdown made his first appearance in court.
Larry Dawson pleaded not guilty Wednesday in federal court.
Police said Dawson drew a BB gun at the Capitol's Visitor Center checkpoint, and prompted the lockdown back in March.
U.S. Capitol Shooting Suspect Officially Charged
U.S. Capitol Shooting Suspect From Tennessee
Officers shot him when he wouldn't drop the gun. He's been in a hospital ever since.
The 66-year-old was known to Capitol police, who last October arrested for disrupting House proceedings and yelling he was a "prophet of God."
Dawson faces two federal charges, and was set to be back in court on Monday.
