7 missing women are linked to Olney “house of horrors” in Philadelphia. Here’s what we know.

Updated on: September 18, 2026 / 9:27 AM EDT / CBS News

Philadelphia police continue to probe a home in the city's Olney neighborhood that is linked to at least seven missing women, five of whom are presumed dead. The investigation into their disappearances is centering around a father-son duo who lived in the house.

Inside the home, authorities said they recovered a trove of digital images and found a so-called "laboratory" of chemicals and a small marijuana grow operation. Eugene Horsch, who owns the home, was arrested in June and is facing firearms and drug charges. His father, R.C. Horsch, had also lived in the home before he died last year.

Here's what we know about the investigation.

Eugene Horsch was initially arrested in June when a park ranger saw him illegally parked near Philadelphia's Independence National Historical Park, according to a criminal complaint. When the ranger went to confront 44-year-old Eugene Horsch, he saw that there was also a woman in the car. When he asked for their identification, the woman's documents were those of another woman who had been missing since 2023: Blair Tonzelli.

While searching Eugene Horsch and his car, the park ranger found a switchblade…

Original source: https://www.cbsnews.com/world/