Philadelphia's "House of Horrors" Is Now Linked to Seven Missing Women and a Massive FBI Search

A deteriorating brick house in Philadelphia’s Olney neighborhood has become the center of one of the city’s most disturbing ongoing investigations. The property at 417 W. Chew Avenue is now connected by police to seven missing women, five of whom investigators believe are dead, while federal agents and Philadelphia detectives continue digging through the house and its yard for evidence. The investigation did not begin with a missing-person case. It began on June 19, 2026, when a National Park Service ranger encountered Eugene Horsch near Independence National Historical Park in downtown Philadelphia. Horsch was arrested after authorities found weapons, drugs and false law-enforcement credentials. The woman with him was carrying identification in the name of Blair Tonzelli, but police determined that the identification was fake. The real Tonzelli had been reported missing in 2023 and had been associated with the Chew Avenue house. That discovery led investigators back to 417 W. Chew Avenue, a three-story brick property long associated with Eugene’s father, Raymond “R.C.” Horsch. Raymond, who died in 2025 at age 82, worked for decades as an erotic photographer and filmmaker and frequently photographed women struggling with drug addiction. Several women later connected to the investigation had spent time at his home or appeared in his photographs and videos. The scope of the case expanded dramatically once investigators began examining digital material recovered from the property. Police have said more than one million photographs and videos were seized or identified during the investigation. By September, investigators had identified 58 people appearing in the material, and seven missing women had been linked to the house. Police said evidence in the files led them to believe five of those women were dead. One of the women is Amy McHale, Raymond Horsch’s former wife. McHale disappeared in June 2016 after spending time at the Chew Avenue property. Her family told reporters that the last communication they received from her came while she was at or leaving the house. Her disappearance remained unresolved for a decade before the 2026 investigation brought renewed attention to the property. Another is Nicole Fusaro, who disappeared in 2018 at age 27. Philadelphia police have told her surviving relatives that they believe Raymond Horsch killed her. Investigators reportedly recovered video evidence that they believe shows Horsch strangling a woman identified as Fusaro. Because Horsch died before the current investigation began, he cannot be charged or tried, and the conclusions surrounding his role remain part of an active law-enforcement investigation rather than a criminal conviction. Blair Tonzelli is another major part of the case. She disappeared in 2022 and was reported missing the following year. The Philadelphia Inquirer found that a photograph of Tonzelli, appearing injured, had been displayed on Raymond Horsch’s website even after she had vanished. Her name resurfaced in June 2026 when the woman traveling with Eugene Horsch presented a false identification card bearing Tonzelli’s identity. Investigators have also connected the property to Maribel Fresses and Gabrielle Amarando. Police said video evidence caused them to believe both women were dead. As the digital review continued, authorities repeatedly emphasized that they had not recovered the bodies of the missing women and that the investigation remained open. What officers found inside the house only intensified the scrutiny. Reports described hidden compartments, firearms, drugs, chemicals, containers and extensive computer equipment. Investigators also recovered five urns containing cremated remains, although the presence of ashes does not by itself indicate criminal activity. At least one urn was associated with Raymond Horsch. Authorities began attempting to determine the identities and origins of the other remains. The basement became a particular focus. Investigators found equipment and chemicals that prompted closer forensic examination, while Raymond Horsch’s own writings complicated the picture further. He had published fictional work involving serial murder and had produced violent or simulated violent imagery. Police and reporters have had to distinguish between material created as fiction or pornography and evidence that might document actual crimes. That distinction is one of the reasons the digital examination has taken months. The property itself had attracted police attention before the missing-women investigation. In 2013, authorities discovered a large marijuana operation there. In May 2025, firefighters responding to a blaze found marijuana plants, firearms and chemical containers, leading to another police investigation. At the time, however, officers were focused on drugs and weapons rather than the disappearances of women connected to the address. By late September and October 2026, the investigation had moved into a more intensive forensic phase. Philadelphia police and the FBI returned repeatedly to the house, cleared debris and prepared the property for excavation. Teams used dogs, forensic chemicals and specialized equipment while examining areas inside the house and beneath the surrounding ground. Luminol testing was used inside the property to search for traces consistent with blood, including evidence that may have been cleaned or hidden years earlier. Investigators then began excavating both the front and back yards with heavy machinery, including areas where structures had previously stood. In mid-October, investigators found DNA evidence inside the house that was sent for further testing. Shortly afterward, bones were discovered in the backyard. The Philadelphia Medical Examiner’s Office responded to the property, but authorities had not immediately determined whether the bones were human, whose remains they might be, or whether they were connected to any of the missing women. The excavation was still underway as of October 19. Investigative sources told CBS Philadelphia that crews had completed only about half of the backyard search and expected to continue digging through the week. Eugene Horsch remains in custody, but his current charges involve weapons, drugs and related offenses. He has not been charged with murdering the missing women, and investigators have not publicly established that he participated in any deaths connected with the property. His attorney has declined to discuss many aspects of the case while negotiations with federal prosecutors continue. The same caution applies to Raymond Horsch. Police now believe evidence connects him to the deaths of some of the women, but he died before those claims could be tested in court. Calling him a convicted serial killer would therefore be inaccurate. The investigation is attempting to determine what actually happened inside the house, which images depict staged material, which document real violence, and whether physical evidence can confirm what detectives believe they are seeing in the recovered videos. For decades, 417 W. Chew Avenue looked like another aging Philadelphia residence. By 2026, boarded windows, fire damage and police tape made it visibly different from the surrounding homes. FBI agents in protective suits moved through the yard while excavators tore into the soil behind the building. The answers investigators are looking for may have been hidden there for years. Seven women are now tied to the property. Five are believed dead. More than a million digital files have been collected, DNA has been recovered, and bones have been found in the backyard. What those discoveries ultimately prove is still being determined.