The man accused of firing a gun inside the Comet Ping Pong restaurant heads back to court Monday afternoon.

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Twenty-eight-year-old Edgar Welch from North Carolina has pleaded not guilty after going to the D.C. pizza restaurant with a gun because he believed a child sex ring was operating in its basement after he read about it online.

He's charged with assault with a dangerous weapon, possessing a firearm during a felony, and transporting that gun and ammo across state lines.

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Court officials say its possible a trial date could be set.