A Casper man accused of sexually abusing and photographing a young girl over the course of several months denied over a dozen felony charges brought against him Tuesday in district court.

Stefan Wayne Voltaire pleaded not guilty to six counts of first-degree sexual abuse of a minor, six counts of third-degree sexual abuse of a minor and one count of sexual exploitation of children. He could face up to 400 years in prison if convicted on all counts.

Charging papers say on March 1, a Casper police detective began investigating after Voltaire's then-girlfriend found inappropriate pictures of the victim on a computer belonging to Voltaire.

The victim's mother told the detective that she came across photos which showed Voltaire's hands on the victim. Several of the photos depicted sexual intrusion, while others allegedly showed sexual contact.

Voltaire allegedly told investigators that he had joined an "online erotic community" and participated in a "game" created by other members. The "game" was to find incest pornography videos and create "erotica" videos for others to view, according to the affidavit.

As of Tuesday, trial was set to be scheduled for three days, though the dates have not been determined.

Voltaire remains in custody on bond.

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