A major new development is unfolding in the investigation surrounding the Olney home on Chew Avenue in Philadelphia. After investigators spent months collecting and reviewing a massive amount of material from the property, authorities say they plan to return to the residence in late September for another focused search.

The decision comes after police and the FBI uncovered more than 1 million digital evidence items, including photographs, videos and written material. Investigators have so far reviewed only about 30% of the digital evidence, meaning a substantial amount of material remains to be examined.

Authorities have also identified at least seven missing women whose cases are connected to the property. Police say recovered digital material includes images or videos involving several women who had previously been reported missing. However, investigators have emphasized that they still need additional evidence to establish exactly what happened to each person.

One of the most closely examined discoveries is video material involving Eugene Horsch’s late father, Raymond “R.C.” Horsch. Investigators say one video appears to show a woman being restrained and losing consciousness. Police have cautioned that some material may have been staged for adult films, while other scenes could depict real events. Investigators are therefore working to corroborate what appears in the recordings rather than treating the footage alone as proof of a crime.

The investigation has also uncovered unknown chemicals, a basement laboratory, firearms, drugs and several urns believed to contain human ashes. Some chemical evidence has been sent to a specialized laboratory in Chicago for further analysis. Authorities have not publicly established that the chemicals or urns are connected to the missing women.

Now, investigators are preparing to go back to the property. Officials say new information obtained during the continuing review has helped guide a more targeted search. The return to the house could allow investigators to examine specific locations or objects that became relevant only after the enormous volume of digital evidence was analyzed.

The latest development is significant because investigators say no human remains belonging to the missing women have been confirmed at the property, and no homicide charges have been announced in connection with their disappearances. The case therefore remains an active investigation, with authorities still attempting to establish what happened to the women and determine which pieces of evidence can be independently corroborated.