PORTLAND, Ore. -- The stepmother of Kyron Horman says she is not guilty of stealing a handgun from her roommate in California.

Terri Lynn Moulton, also known as Terri Horman, is facing charges for allegedly stealing the handgun in 2015. Her roommate said Moulton stole it from a safe in his Marysville, California home. When contacted by police, officers say Moulton had the stolen gun in her possession.

The charges are unrelated to Kyron Horman's disappearance.

Moulton told People magazine she was innocent.

“I’m not guilty. I don’t steal things,” she told People.

Prosecutors charged Moulton with grand theft firearm, a misdemeanor crime. Records show she failed to show up for arraignment and a warrant was issued for her arrest.

On July 4, 2016, Moulton was booked and released from the Yuba County Jail for failure to appear. She later pleaded not guilty to the theft charge.

Kyron Horman was last seen on June 4, 2010 at Skyline School in Northwest Portland. He has never been found.

Moulton has long been the focus of investigators, although she has never been charged with the crime or officially named a suspect.