Diogenes Archangel-Ortiz on Saturday killed a police officer during a hostage situation at UPMC Memorial Hospital in York ...

Pieced together through 911 dispatches and other sources, here's how everyday heroes responded to a hostage situation and killing of a police officer.

A gunman, armed with a handgun and carrying zip ties, went inside UPMC's ICU, and took staffers hostage before he was ...

A physician’s assistant at UPMC Memorial Hospital claims he delivered devastating news to Diogenes Archangel-Ortiz in the ...

A funeral service will be held later this week for a Pennsylvania police officer who was killed last weekend while responding ...

A petition is hoping to inspire stricter security policies at UPMC hospitals after a gunman took hospital staff hostage in a ...

Four people are hospitalized and a gunman is dead after a shooting at the UPMC Hospital in York Saturday morning, according ...

Authorities say a shooter entered UPMC Memorial Hospital's ICU and took staff members hostage before he was killed by police ...

The gunman who held intensive care unit staff hostage at UPMC Memorial Hospital in Pennsylvania before killing a police ...

An officer was killed and multiple people were injured in a shooting reported at UPMC Memorial Hospital in York County, ...

Nearly a decade before Diogenes Archangel-Ortiz held UPMC Memorial Hospital ICU staff at gunpoint, the 49-year-old man was the subject of a protection from abuse filing in a domestic dispute.