Sherri Papini’s Dad Blames ‘Some Punks’ for 2003 Racist Post Written Under Her Maiden Name

A young mother vanished during a morning jog near her California home — and was found 22 days later on the side of the highway. As she recovers, investigators push to figure out what really happened. Subscribe now to PEOPLE, or pick up this week’s issue, on newsstands Friday, for much more on this case.

In 2003, someone using Sherri Papini‘s maiden name and claiming to be from her hometown wrote a bizarre and racist post on a white supremacist website, detailing how they got into violent physical fights with Latinos during high school.

That post, which recently resurfaced, is being investigated after a battered Papini, 34, was found on Thanksgiving — 22 days after she mysteriously disappeared during a morning jog near her home in Redding, California. She told investigators her abductors were two armed Hispanic women, one with curly hair and one with straight hair, who spoke mostly Spanish.

As authorities continue to search for suspects and a motive in Papini’s apparent abduction, they have said the online post is “being looked into.”

But Papini’s father, Richard Graeff, tells PEOPLE exclusively in this week’s issue, on newsstands Friday, “Sherri did not write that letter. Some punks wrote that letter.”

A friend of Papini’s agrees: “It was not her; it is not who she is,” they say. “It was posted online, and Sherri tried to get it taken down, but they refused to. She never found out who did it.”

Papini’s husband, Keith Papini, disputed in a statement to PEOPLE any speculation that Sherri’s abduction was “some fabricated race war.” He also said that “rumors, assumptions, lies, and hate have been both exhausting and disgusting.”

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The online post was unearthed in archived material from a now-defunct white supremacist website, and it was recently posted on a true crime site.

The writer of the post claims to be a Sherri Graeff — Sherri’s maiden name — who got suspended from school in Shasta Lake, California, “all the time for defending myself against Latinos” because she was “white and proud of my blood and heritage.”

The post describes its author beating up a Latino girl in the school gym and leaving her with a broken nose after Latinos called the writer’s father a Nazi at a volleyball game. Two weeks later, according to the post, a group of Latino boys and girls beat the writer up in the pizza parlor where they worked.

“It’s all garbage,” Richard Graeff tells PEOPLE, “ never happened.”