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

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

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

New Hyde Park, N.Y.-based Northwell Health has appointed Matthew Harinstein, MD, as vice president and associate chief medical officer. He will also serve as associate medical director at North Shore ...

York County District Attorney Tim Barker alleged Archangel-Ortiz held medical personnel and other staff at gunpoint in the intensive care unit of the University of Pittsburgh Medical Center Memorial ...