A mass shooting at UPMC Memorial Center has left the gunman and a police officer killed and multiple hospital staff injured.

Ortiz, 49, carried a pistol and zip ties into the intensive care unit at UPMC Memorial Hospital in southern Pennsylvania’s ...

Officials say 49-year-old Diogenes Archangel-Ortiz had recent contact with the intensive care unit "for a medical purpose ...

The man who authorities say entered a Pennsylvania hospital with zip ties and a pistol over the weekend had recent contact ...

Lester Mendoza, a physician's assistant at UPMC Memorial Hospital in York, said he helped tell the shooter a loved one had ...

Workers at a Pennsylvania hospital who were injured during a shooting that left the gunman and a police officer dead were ...

The officer killed while responding to a shooting and hostage situation at a Pennsylvania hospital on Saturday had celebrated ...

Investigators are trying to determine why an armed man targeted a hospital in the US state of Pennsylvania, killing one ...