Philadelphia Serial Killer? When Did the Murders Begin?

Is the suspected Philadelphia serial killer case much older than investigators realise?

This week, I’m digging deeper into the life of R.C. Horsch—and I believe the timeline may be one of the most important parts of this story. While much of the attention has focused on the house in Olney where human remains were discovered in June 2026, my reporting is taking me back decades earlier.

I’ve been speaking with people who knew Horsch and examining a roughly 35-year period in his life. Horsch presented disturbing artwork from the perspective of a serial killer as fiction. But with authorities now investigating his possible connection to multiple deaths, it raises an unsettling question: was it simply art, or could some of it have reflected something real?

The trail leads to Kensington Avenue in North Philadelphia, where Horsch became a fixture in a neighbourhood with a large population of vulnerable women, including sex workers. I’m now examining incidents, arrests and other evidence from this period to understand whether the story that emerged from the Olney house in 2026 may actually have begun decades earlier.

Every Monday, I’ll bring you inside my investigation: what I’ve found, what has changed, what we can establish—and what I’m still trying to figure out.

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