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

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

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

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

Officials have released a mugshot of the gunman involved in the UPMC Memorial Hospital shooting that killed a West York police officer. The shooter, identified as Diogenes Archangel-Ortiz, entered the ...

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

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

Diogenes Archangel-Ortiz stormed the Pennsylvania hospital while being armed with zip ties and a revolve, killing one officer ...

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