Philadelphia · Philadelphia County · August 14, 2026
Tips Were Placed in 2024 Regarding RC Horsch and Several Missing Women
BREAKING — RC Horsch (Raymond Charles Horsch), a now-deceased Olney, Philadelphia resident and suspected serial killer, had tips made about him in 2024 by Underground Mysteries.
August 14, 2026
Raymond Charles Horsch (also known as RC Horsch) and his son, Eugene Horsch, have been
circulating in the media in the last couple of months, as they are tied to multiple missing women cases.
The media has been presenting this case as if RC Horsch was just recently brought to the law enforcement's attention, but that is not the case. The founder of Underground Mysteries had connected the dots to RC Horsch years ago. However, a search warrant was apparently not obtained at the time.
For background, the founder of U.M. has dedicated years of her life to searching for missing people and has located hundreds of missing people across the USA and other countries, as well as identifying many unidentified people. She also runs a forensic company, Doe Naming, that aides in the identification of unidentified remains and runs an unreported missing person database. Her Underground Mysteries Facebook page can be found here. The founder uses a mixture of modern technology and her own innovative technology that she created that even law enforcement may not be privy to. She claims this is how she has located so many missing people, many of which were from Philadelphia.
The founder of this company had alerted law enforcement on RC Horsch in 2024 after finding a distressing photo of Amy McHale on his website — not any of the photos that are found in the current online media. She believes the photo was taken around the time of her disappearance. She then found that missing women were connected to his address and many other 'red flags.' She researched him heavily and gathered whatever information that she could. She had sent the photo and other alarming facts of RC Horsch to law enforcement in 2024, including RC's own public confessions of being a serial killer. What she stumbled across was very alarming: a man who was a self-proclaimed psychopathic, sadistic serial killer and counterfeiter who "targets Kensington prostitutes" and makes documentaries, books, and videos on his crimes. He publicly claimed to overdose and strangle his victims. He also suggested in his writings that after he passes away, law enforcement would uncover truths about him.
At the time of this discovery, the founder of U.M. had already established a 'cluster group' of women missing from Kensington, Philadelphia, after honing on this area upon realizing so many commonalities amongst several missing women. She had been looking into all of these missing women for years at this point. She states that her intention was always to search for them alive and was not expecting to uncover something of this nature.
She connected the dots to Amy McHale and RC Horsch long before it was in the news. After alerting the detective, the detective questioned RC in 2024 or prior; however, RC denied involvement in Amy's disappearance and stated that his works were 'fictional.' The founder of U.M. had also stated that she strongly suspected he should be looked into thoroughly and that she believes others could be tied to his case.
The founder also connected the dots to another man, whom she also alerted law enforcement on in 2023, whose name is not yet publicly released by her. The man in question is tied to both Maribel Fresses and Katherine Demianczyk. Maribel Fresses went missing around the same time of Katherine Demianczyk. They both hung out in the same circles and were a part of the Needle Prevention Point. Maribel and Katherine shared a very important common denominator: this [undisclosed] man who they were reportedly seen with around the time of their disappearances.
Law enforcement officers were able to find evidence that suggests that Maribel Fresses was a victim of RC Horsch or his son. This evidence involves post-mortem material that was on the Horsch's hard drive.
Before the recent news articles that surfaced yesterday, August 13, 2026, there were no other news articles on Maribel, besides the one that the founder of Underground Mysteries had written. She had dedicated extensive time researching her case.
So, how does this relate to the Horsch duo? The founder of U.M. had already suspected Horsch to be a possible perpetrator to Katherine Demianczyk, and Katherine and Maribel shared the other common denominator (the aforementioned undisclosed-named man), she had already theorized that both could have been victims of Horsch.
The stumbling on Horsch's documentaries, websites, books, and videos, though, was enough in 2024 for the founder of U.M. to suspect him for foul play, especially considering how he mentioned targeting Kensington women and had what appeared to be graphic, disturbing photos of women.
In 2024, she drew the links to the following people, whom she reported to police through tip lines and more. She also reported this to detectives recently.
She suspected Blair Tonzelli could have been a victim, based on the fact that she found a shared address with her and RC Horsch, which showed on a basic background report she ran.
She suspected Krista Killen, now deceased, may have been harmed by Horsch. She had found evidence in 2024 of her name being tied to their Chew Street home in the Olney section of Philadelphia.
She suspected that Katherine Demianczyk could have had ties to Horsh, based on other undisclosed findings.
She suspected that Maribel Fresses could have had ties to Horsch, based on her connection and similarities to Katherine Demianczyk and the shared mutual contact to her.
She suspected Amy McHale, simply due to the distressing photo that RC Horsch took (and put in his video) and because she was married to him.
She suspected Rebecca Wilson, a woman who went missing in Kensington who has not gotten a proper missing person report or missing persons report, due to her sharing similar circumstances, geographical location connection, common denominator friends in the community, and other common factors.
She suspected Nicole Fusaro, based on shared circumstances, geographical location connection, and more.
She also found that Corrine Pena's name was connected to the Olney residence. Corrine was killed by Horsch, but she was a victim in other ways before her death.
She also suspects that Horsch may have been a perpetrator behind the death of another woman named Amy (not Amy McHale, but another woman), who was an unidentified Jane Doe in Philadelphia for a few years. The founder of U.M. / Doe Naming had identified her a few years ago, but her cause of death was unknown. She was found in a body of water. She was also a female from Kensington who was prostituting. One of the methods that RC Horsch claimed he
used to kill people was strangulation and overdosing.
She also suspects other missing Philadelphian (and some New Jersian) women, but she did not find enough evidence to tie them to him.
The founder of U.M. spent the most time on Katherine Demianczyk's case out of all the aforementioned cases. She also has extensive notes on RC Horsch that was done years ago. A lot of the information that was available online years ago is not the same as what is available today; a lot of Horsch's websites are now defunct. She has a list of his old emails, numbers, and so much more.
She has fully re-created Katherine's timeline and honed in on her last known whereabouts. She was able to find social media activity after her 'known' disappearance date, but she does not know if the activity was from her or someone who had her mobile device. She also put together many documents that highlight the people in Katherine's life. She does not say outright that she believes she is a Horsch victim but rather that there is a strong possibility of it. There has been o found paper trail of Katherine, Nicole, Amy, Maribel, or Blair since their disappearance.
She has also been helping advocate for Nicole Fusaro, who was also last seen in Philadelphia.
Even though she alerted authorities, a search warrant could not be obtained. She individually put tips in on each missing women in connection to Horsch or possible suspicious of them being connected to him, but that was not enough to get a search warrant.
She had sent authorities extensive information on Horsch, highlighting even information that is not available on the web in present day.
So, when RC Horsch came out in the news as if it was all new information, it was actually brought forth years ago to. The police knew about him and his crimes, as the founder of U.M. / Doe Naming had told them about his past criminal history, public confessions, books, etc. However, it was not enough to render him as a suspect.
RC Horsch is now deceased, but law enforcement is looking to speak to anyone who has had interactions with him or his son, Eugene Horsch, so that they can put together a timeline of their whereabouts and collect any information that could help them solve any more missing person cases. They can be reached at 215-686-3334.
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