PHILADELPHIA (WPVI) — As investigators continue to gather more evidence in Olney and the investigation into Raymond “R.C.” Horsch and his son Eugene, we’re learning more about the woman who was with him when he was arrested in June, an encounter that helped launch the broader case.

Court documents identify the woman as “A.T.”

A neighbor said he witnessed interactions between the two, saying, “He was infatuated with her. He’d wait for hours for her; she made him wait.”

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According to authorities, a federal park ranger encountered a vehicle parked in the 600 block of Market Street in June. Investigators now say the vehicle was Horsch’s black BMW and that he was not alone. During the encounter, authorities said the ranger heard a female voice from inside the vehicle saying, “You’re going to hurt me.”

Court documents obtained by Action News identified the woman as A.T. Records and interviews traced her to a Northeast Philadelphia neighborhood, where residents said she had been coming and going for years and had spent time in and out of jail.

One neighbor described her by saying, “She was a drug addict, swore she was off it and she wasn’t.”

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Video obtained by Action News shows agents serving an early morning search warrant at her Philadelphia home in November 2024. According to records, conspiracy and drug-related charges were filed against her the following day.

A neighbor said A.T. frequently stayed at his home.

“I was just being nice,” he said.

The neighbor said Horsch would often come to the neighborhood to pick her up. That changed after Horsch’s arrest in June.

“All this stuff went down with Horsch, or whatever his name is. I told her she wasn’t welcome anymore and she left,” the neighbor said.

“I didn’t like she was bringing people like that around my house,” he added.

A.T. has not been charged in the Horsch case. However, investigators consider her presence during the June traffic stop significant.

According to court documents, authorities found an identification card bearing the name Blair Tonzelli, a woman who had been reported missing, during a search following the stop. Investigators say that discovery raised concerns and led police to the Chew Avenue home of the late R.C. Horsch and his son, expanding the scope of the investigation.

This week, Philadelphia police and the FBI used luminol at the property, a chemical that can reveal traces that are not visible to the naked eye. Sources told Action News investigators received a positive chemical reaction, though additional testing is still required.

Further testing is also needed to determine whether bones recovered from the property are human or animal. Investigators spent days digging and sifting through soil in the backyard.

Sources also said investigators uncovered a safe hidden behind a wall as they dismantled portions of the house.

Police have said the Chew Avenue home is connected to at least seven missing or unidentified women.

Eugene Horsch is not scheduled to return to court until March.

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