An investigation is underway in western Iowa after a woman claimed to have he helped his serial killer father dispose of several corpses when he was a child.

Fremont County Sheriff Kevin Aistrope told the local CNN affiliate, “We’re actively investigating this, and who wouldn’t be?”

“We have a scene, but we don’t know if it’s a crime scene,” the sheriff added. “We have no victims, no bodies. Nothing.”

Lucy Studey claims her father, Donald, killed up to 70 women and dumped their bodies in a well on their property.

“He was telling us to go to the well, and we knew what that meant,” Studey said. Newsweek. “Every time I went to the well or the hill, I didn’t think I was going down. I thought he was going to kill me because I wouldn’t keep my mouth shut.”

The accuser’s sister, Susan, had a rebuttal, saying idea that her father was a serial killer is absurd and baseless. “My father was not the man she says he is. He was strict, but he was a protective father who loved his children… Strict fathers don’t just turn into serial killers … I am two years older than Lucy. I think I would know if my father killed.”

Aistrope confirmed that he took corpse dogs to the area Lucy pointed out and that the dogs had a reaction, but gave no further details on exactly where they responded. “We will do everything we can to prove or disprove that there might be a crime scene,” he said.

The FBI got involved and say it could be months before they confirm or deny the allegations. The alleged suspect died in 2013.

In order to proceed with the case, authorities will first have to question the validity of Studey’s allegations. From there, they can either start digging or remove the claims.

Mitch Mortvedt, deputy director of the Iowa Division of Criminal Investigation (DCI), says cadaver dogs aren’t the only thing they’re basing their investigation on. Other factors will need to be met before the search team can or will break ground.

*Header photo from the Netflix movie 1922.