POLICE may have reopened their investigation into the murder of two teenage girls as new theories about a killer cult circulate, lawyers have alleged in a court filing.

Abby Williams, 13, and Libby German, 14, were killed in February 2017 while hiking near Delphi, Indiana, about 75 miles northwest of Indianapolis.

Richard Allen, 50, was arrested for their murders in October 2022. Prosecutors said he admitted to the killings at least five times.

But there are new developments in the case which indicate the killer may have been motivated by Odinism, a Norse neo-pagan religion to which Allen has no ties.

The attorneys argued they have obtained audio from interviews police conducted with adherents of the faith, according to court documents obtained by local Fox affiliate WXIN.

With rumors of a rekindled investigation swirling, on Monday the defendant’s lawyers requested that the judge set a deadline for prosecutors to hand over any new evidence.

The attorneys believe members of an Odinist cult ritualistically sacrificed Williams and German.

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They pointed to the way the bodies were arranged at the crime scene and how tree branches were “intentionally placed in a very specific and arranged pattern.”

While most practitioners of Odinism are peaceful, some have been known to engage in violent rituals.

The attorneys said authorities have issued search warrants for the phone and internet records of an unidentified person who admitted to killing the teens.

They said this person provided investigators details about the killing that hadn’t been released to the public at the time.

“Such as the fact that he used knife in way consistent with the manner of death and also claiming that he used gun but never fired it,” the lawyers wrote.

Last month, investigators also re-interviewed a Purdue University professor who ruled out the Odinism theory early on in the investigation.

“Defendant Allen takes no exception with the State reopening its investigation (and) directing its focus on other suspects in this case,” the court filing said.

But he “desires that there be some end to the offering up of new information.”

Prosecutors have called the claims about Odinism’s role in the case “colorful, dramatic, and highly unprofessional” and “a fanciful defense for social media to devour.”

Allen’s trial has been scheduled for January 2024.