Man Charged with Murder After Shooting Stranger in Tredyffrin

Police had released the armed suspect hours earlier after he refused mental health treatment

Published on Mar. 10, 2026

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A 44-year-old man named Steve Jahn was charged with murder after he allegedly shot and killed a woman in Tredyffrin, Pennsylvania on Saturday night. Authorities say Jahn had called 911 earlier that evening, claiming people were out to get him, and police had released him after he refused mental health treatment, despite him having a loaded gun in his vehicle.

Why it matters

This case raises concerns about how police handle individuals experiencing mental health crises, especially when they are armed. It highlights the need for better coordination between law enforcement and mental health services to prevent such tragic outcomes.

The details

According to court documents, about two hours before the shooting, Jahn called 911 saying he was being followed and had a loaded gun in his truck. Police suggested he voluntarily commit himself for a mental health evaluation, but he refused and was allowed to leave. Hours later, Jahn allegedly shot and killed a woman in her car. Surveillance footage and witness accounts helped police identify Jahn as the suspect, who was later detained at a relative's home.

  • Around 8:17 PM on Saturday, Jahn was seen on dashcam footage holding a semi-automatic handgun while parked at the Paoli West Shopping Center.
  • Around 10:40 PM on Saturday, a neighbor's surveillance camera captured audio of a gunshot near the crime scene.
  • Around 10:56 PM on Saturday, another neighbor's baby monitor recorded five gunshots near the shooting location.
  • At 10:47 PM on Saturday, the victim was found shot in her car and later pronounced dead at 11:09 PM on Sunday.
  • Around 3:14 AM on Sunday, police located Jahn's truck and secured the vehicle as they awaited a search warrant.

The players

Steve Jahn

A 44-year-old man who was charged with criminal homicide, first-degree murder, third-degree murder, and possessing a weapon with intent to use it criminally after the shooting.

Chester County District Attorney Chris de Barrena-Sarobe

The district attorney who spoke at a news conference about the case and how quickly they were able to identify the suspect due to the video evidence.

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What they’re saying

“Because we got so much video in so quickly, we were able to piece this together so quickly. It's a tribute to everyone's partnership here.”

— Chester County District Attorney Chris de Barrena-Sarobe (Patch.com)

What’s next

A preliminary hearing for Steve Jahn is scheduled for March 23.

The takeaway

This tragic case highlights the need for better coordination between law enforcement and mental health services to prevent such incidents, where an individual experiencing a mental health crisis is released by police and later commits a violent act. It raises questions about how to balance public safety with providing appropriate care for those in crisis.