A missing Oregon boy's former stepmom, who has spent years under a spotlight in his disappearance, is set to appear in court on an unrelated gun charge

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A missing Oregon boy’s former stepmom, who has spent years under a spotlight in his disappearance, is set to appear in court on an unrelated gun charge.

But she’s innocent, she tells PEOPLE exclusively.

“I’m not guilty,” Terri Horman says. “I don’t steal things.”

Horman was charged with a misdemeanor last year after allegedly stealing a gun, according to a criminal complaint obtained by PEOPLE. She is scheduled to appear in court next week for failing to appear on the original charge, according to KGW and OregonLive.

Horman allegedly stole her roommate’s gun from their home in Marysville, California, according to OregonLive, and she was arrested for speeding in July. That’s when authorities discovered her arrest warrant for failure to appear in court, at which point she was booked into the Yuba County, California, jail and then made bail, according to the site.

While Horman says she’s innocent, a Yuba County sheriff’s spokeswoman alleged to OregonLive, “She did indeed have the firearm,”

Horman — who was charged in Yuba County under her maiden name, Terri Moulton — has for years faced scrutiny after her then-stepson Kyron, 7, went missing the day Horman dropped him off at his elementary school in Portland, Oregon, on June 4, 2010. (Horman and Kyron’s father later divorced.)

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She has never been charged in Kyron’s case or named as a suspect, and no arrests have been made. Authorities say the investigation is ongoing.

But Horman drew attention in part because she never spoke publicly about the disappearance. Then, earlier this year, she sat down with PEOPLE and told her side of the story for the first time since Kyron vanished.

Terri Horman

“No one is looking for him anymore,” she said. She said she did not harm or kill Kyron and had no idea what happened to him or where he is. She has tried to escape a group of “haters” who pursue her in connection with the case, she told PEOPLE at the time.

Since her interview, Horman moved to an undisclosed location in California and tried to keep a low profile — until this latest legal dust-up.

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“There’s this cloud over my head for something I haven’t done that keeps following me,” Horman tells PEOPLE.

(For his part, Kyron’s father told PEOPLE after Horman’s first interview that he hoped “Ms. Horman will now cooperate with law enforcement to provide additional information that might lead to the discovery of Kyron.”)

She is scheduled for a pre-trial hearing on Dec. 16.

The Yuba County District Attorney’s Office did not comment on her charges. The Yuba County Sheriff’s Office declined to comment.