It started with a routine traffic stop near the Liberty Bell. Weeks later, it had turned into a sprawling federal investigation touching two possible homicides, decades-old missing persons cases, and a rundown rowhouse in a quiet Philadelphia neighborhood.
Eugene Albert Horsch, 44, is currently in federal custody facing charges related to illegal guns and fake law enforcement identification. He has not been charged with any crime connected to the deaths of two women whose images investigators say were found on hard drives recovered from his home. That distinction matters, and it is worth stating clearly before anything else: as of the most recent court filings, no one has been charged with murder in this case. What follows is a summary of what has been reported so far, pulled from Philadelphia news outlets and national coverage that have been following the case since June.
Who Is Eugene Horsch?
Horsch is a longtime resident of a home on the 400 block of West Chew Avenue in the Olney section of Philadelphia. According to reporting from the Philadelphia Inquirer and CBS News Philadelphia, he had a prior felony conviction in Pennsylvania, which is part of why he now faces a federal charge for illegally possessing a firearm.
His father, Raymond "R.C." Horsch, also lived in the home until his death in 2025. NBC10's investigative team reported that the elder Horsch had a documented history of drug manufacturing and had self-published erotic fiction with violent, sadomasochistic themes. CNN's reporting added that a neighbor who knew the father described the home as full of the father's belongings, making it hard to tell what in the house belonged to Eugene and what belonged to his father. Some writings found at the property are reportedly being examined by investigators to determine whether they were meant as fiction, possibly a novel or screenplay, or something else entirely.
Raymond Horsch's connection to the case runs deeper than just being Eugene's father. He was once married to Amy McHale, a woman who has been missing since 2016. That marriage is one of the threads that pulled investigators toward the Chew Avenue property in the first place.
How It Started: A Timeline
June 19, 2026 — Around 8 a.m., a U.S. Park Service ranger noticed a black BMW illegally parked near Independence National Historical Park, in a spot reserved for law enforcement vehicles. According to the police report obtained by the Inquirer, the ranger approached to speak with the driver. During the encounter, a woman inside the car reportedly told the ranger that the driver was "going to hurt" her. That comment led to a search of the vehicle, which turned up switchblade knives, drug materials, a cattle prod, and eventually two loaded handguns. The driver was Eugene Horsch.
Shortly After the Stop — Officers also found a fraudulent Drug Enforcement Administration badge bearing Horsch's photo, along with thousands of dollars' worth of illegal drugs. The woman traveling with Horsch was carrying an identification card under the name Blair Tonzelli, a woman who has been missing since February 2023. Horsch was arrested and initially held on $500,000 bail on local gun and drug charges.
Late June 2026 — Investigators executed a search warrant at the Chew Avenue home. What they found there expanded the case well beyond a simple gun and drug arrest. According to Deputy Police Commissioner Frank Vanore, the search turned up another illegal firearm, materials connected to growing marijuana, and a basement area containing unidentified chemicals stored in bottles and large plastic drums, some connected to water lines. The unusual setup was enough that the FBI was called in to help analyze it. Around the same time, a second fake federal badge, this one for the FBI, was also found in the home.
Early July 2026 — As national outlets including CNN picked up the story, the investigation's scope became clearer. Detectives had started looking into whether Horsch might be connected to more than one missing woman. Investigators also found five urns in the home believed to contain cremated remains, according to CBS News Philadelphia.
Mid-July 2026 — A federal grand jury indicted Horsch on charges of possessing a firearm as a felon and possessing fraudulent federal identification documents, as first reported by NBC10's investigative unit. The indictment formalized the federal case and ordered Horsch to surrender the weapons, ammunition, and fake IDs connected to the arrest.
Following weeks — The digital side of the investigation grew significantly. According to 6abc, investigators were reviewing approximately 600,000 images and 70,000 videos recovered from devices at the property, alongside physical evidence sent out for lab testing. CBS News Philadelphia reported that on one hard drive, detectives found photos and videos, apparently shot inside the home, appearing to show two women, later identified as Maribel Fresses and Gabrielle Amarando, both born in 1990, first alive and later appearing to be dead.
August 6, 2026 — Philadelphia prosecutors formally withdrew the local gun and drug charges against Horsch, clearing the way for the federal case to take over entirely. Assistant District Attorney Alyssa Amoroso told a judge that the U.S. Attorney's Office would handle the matter going forward, according to the Inquirer. Horsch remains in federal custody and has a court date scheduled for September.
Ongoing — As of the most recent reporting, investigators have continued digging into the property itself, including excavating parts of the yard and removing sewer lines and piping for further examination. Chemical testing on more than 20 containers of unknown substances is being handled at a lab in Chicago. No additional charges tied to the deaths of any of the women connected to the case had been filed as of the last update.
The Missing Women
Four women's names have surfaced in connection with this investigation, and it is easy to mix them up. Here is what is known about each one so far, according to police and news reports.
Amy McHale has been missing since 2016. She was previously married to Raymond Horsch, Eugene's father. Her disappearance predates the current investigation by a decade, and her case was largely cold until Eugene Horsch's arrest brought new attention to the family.
Blair Tonzelli has been missing since February 2023. Her identification card was found on the woman who was with Horsch during the June traffic stop. Investigators have said, through a debriefing process, that they believe it is unlikely Tonzelli will be found alive.
Maribel Fresses has been missing since 2018. According to CBS News Philadelphia, images and video recovered from a hard drive at the Chew Avenue home appear to show her inside the house, alive and then later appearing deceased.
Gabrielle Amarando has been missing since 2012. Like Fresses, she reportedly appears in the same recovered digital media, first alive and then in footage suggesting she died.
It's important to be precise about the word "appears" here. Investigators have described the digital evidence as troubling and have said it suggests the two women are dead, but as of now, no bodies have been recovered, and no homicide charges have been filed. Forensic review, along with the yard excavation and chemical testing at the property, is still underway.
The House Itself
The home at 417 West Chew Avenue has become the physical center of the investigation. Described in several reports as a rundown twin house, it had been occupied by both Eugene Horsch and his father before the elder Horsch's death in 2025. Reporters and neighbors have said it can be difficult to separate what belonged to each man, since Raymond Horsch's belongings, writings, and equipment reportedly remained throughout the property.
Since the June search, investigators have removed evidence in stages: firearms, fake law enforcement badges, a marijuana grow operation, the urns, unidentified chemicals, and a large amount of digital storage media. According to NBC10, the home had also been searched by authorities once before, at an earlier point that may be connected to narcotics activity, though the property appears to have changed after Raymond Horsch's death.
What Horsch Is Actually Charged With?
It bears repeating, because it is easy to lose track of amid the scale of the investigation: Eugene Horsch's current federal charges are for possessing a firearm as a convicted felon and possessing fraudulent federal identification documents, specifically fake DEA and FBI badges. He was also originally charged locally with gun and drug possession, but those charges were dropped in August once the federal case took over.
He has not been charged with any crime related to the deaths or disappearances of Amy McHale, Blair Tonzelli, Maribel Fresses, or Gabrielle Amarando. He remains in federal custody, and his next scheduled court appearance is in September.
What Remains Unknown?
A number of central questions in this case are still unanswered publicly. Investigators have not said what the unidentified chemicals found in the basement are, or why they were connected to water lines running through a 55-gallon drum. It is not yet known whether the cremated remains found in the urns belong to any of the missing women, to other family members, or to someone unconnected to the case. The exact timeline of when the alleged deaths of Fresses and Amarando may have occurred, based on the video evidence, has not been made public. And investigators have not clarified how much of the disturbing material and writings found in the home should be attributed to Eugene Horsch versus his late father.
A Note on Sourcing
This summary draws on reporting from the Philadelphia Inquirer, CBS News Philadelphia, CNN, NBC10 Philadelphia's investigative unit, FOX 29 Philadelphia, and 6ABC/WPVI, all of which have published original reporting based on police reports, court documents, and statements from Philadelphia police officials. Given that this is an active and ongoing investigation, details are subject to change, and some information reported by police and prosecutors has not yet been independently confirmed through court proceedings.
