Steve Jahn, 44, from Pennsylvania, faces first-degree murder charges for the fatal shooting of Megan Nieberle, a 53-year-old nurse at Children’s Hospital of Philadelphia, in a random attack while she drove her SUV in Tredyffrin Township on March 7, 2026.
Prior Police Contact
Around 8:30 p.m., Jahn called 911 from a Paoli bank parking lot, frantically claiming people—including undercover police—were following him while he waved a loaded revolver. Officers escorted him to Paoli Hospital for a mental health evaluation, but he refused entry, citing suspicious cars, and was allowed to leave despite his paranoia.
Shooting and Arrest
About two hours later, Jahn shot Nieberle in the head on Contention Lane near Old State Road, causing her SUV to crash; she was found slumped over the wheel, rushed to a hospital, and pronounced dead. Legally armed with a concealed carry permit, he was located at a relative’s home, where dashcam footage and incriminating statements emerged; friends noted his recent mental health decline after stopping medication.
Victim Background
Nieberle, a 27-year CHOP veteran in gastroenterology, hepatology, and nutrition, was a Berwyn mother of three. Her family grieves the random tragedy; memorial services are set for March 29 at The Desmond Hotel in Malvern. Jahn remains in Chester County Jail without bond; plea and attorney details are unclear.
