Lester Mendoza, who specializes in pulmonary critical care, was present when the perpetrator was informed about his loved one's death.

I truly did not see a monster. He was simply broken,” a UPMC Memorial physician assistant said of Diogenes Archangel-Ortiz.

An officer was killed and multiple people were injured in a shooting reported at UPMC Memorial Hospital in York County, Pennsylvania on Saturday afternoon.Timeline of eventsSign up for our NewslettersIn a press briefing at the hospital,

Employees at UPMC Memorial Hospital in York County say they've noticed security changes changes after a deadly shooting in the ICU.

Cause of death released for UPMC Memorial Hospital shooter

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