The Collector of Mount Moriah: Why Did a PA Man Stockpile 100 Skeletons?
Opinion | What Then Studio
Overview
We often think of grave robbing as a crime from the 1800s—foggy nights, shovels, and medical schools. But in January 2026, Pennsylvania police uncovered a modern "house of horrors" that rivals any fiction. Jonathan Gerlach, 34, was arrested after allegedly pillaging the historic Mount Moriah Cemetery for months. His haul? Over 100 human remains found in his car, home, and storage unit, including mummified infants and skeletons still attached to cardiac pacemakers. We dive into the "horrific" details of the case and the violation of the dead.
Mount Moriah Cemetery in Yeadon, Pennsylvania, is a place of history. It is the final resting place of Betsy Ross (originally) and thousands of others. But for months, it was also the hunting ground of Jonathan Gerlach. The sheer scale of his alleged crimes—breaking into 26 mausoleums and hoarding hundreds of bones—has left law enforcement stunned. Yeadon Police Chief Henry Giammarco, a 30-year veteran, didn't mince words: "I can say this is probably the most horrific thing that I’ve seen."
The Arrest: Burlap Sacks and License Plates
The undoing of this macabre operation wasn't magic; it was modern surveillance. Police had grown suspicious after license plate readers repeatedly flagged a Toyota RAV4 circling the cemetery, which is known for its lack of fencing and easy access points. Investigators used cellphone tower data to place Gerlach at the scene during the times of the suspected thefts.
On Tuesday, January 6, Yeadon police made their move. They spotted Gerlach leaving the cemetery grounds carrying a crowbar and a heavy burlap sack. When they stopped him near his vehicle, the probable cause affidavit states that "numerous bones and skulls" were visible in plain sight in the back seat.
The contents of the burlap sack alone were nightmare fuel: two mummified children, three human skulls, and various loose bones. According to police, Gerlach admitted on the spot to using the crowbar to pry open a grave that very night.
"Unbelievable Scene": The Basement Discovery
If the car was disturbing, the home was worse. The following day, police executed a search warrant at Gerlach’s residence in Ephrata, about 70 miles away. They also searched a separate storage locker.
Delaware County District Attorney Tanner Rouse described the scene as a "horror movie come to life." The house contained over 100 pieces of human remains. They were not hidden away; they were displayed.
- Bones were piled on shelves.
- Skeletons were reportedly hanging from the ceiling.
- One set of remains still had a cardiac pacemaker attached, a stark reminder of the humanity of the victim.
Rouse noted the difficulty facing investigators now: "Very simply, detectives have recovered an awful lot of bones at this point, and we are still trying to piece together who they are... It’s going to be quite some time before we have a final answer."
Desecrating History: Who Was Stolen?
Gerlach is accused of forcing his way into at least 26 different mausoleums and underground vaults. The victims range from adults to "months-old infants."
This wasn't just theft; it was the erasure of history. Mount Moriah is a landmark, housing notable figures from Pennsylvania's past. By prying open these vaults, Gerlach didn't just steal bones; he destroyed the sanctity of a community's heritage. He now faces nearly 575 criminal charges, including over 100 counts of abuse of a corpse, burglary, theft, and "intentional desecration of venerated objects."
What Then? The "Oddities" Market
At What Then Studio, we have to ask: Why? While authorities are still determining the motive, they recovered jewelry from Gerlach’s home and are investigating if it—or the bones themselves—were destined for sale.
This case shines a light on the dark "oddities" market, where human remains are traded online like baseball cards. Whether motivated by profit or a twisted compulsion to collect, Gerlach’s actions have left a community in mourning all over again. As DA Rouse said, "I grieve for those... who are trying to figure out if it is, in fact, their loved one or their child."
References
This article details the Guardian report on the arrest of Jonathan Gerlach and the subsequent police findings.
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