On Saturday, when a gunman walked into UPMC Memorial Hospital in West Manchester Township armed with a semiautomatic gun, he walked right through to the ICU. The hospital did not have metal detectors anywhere,

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

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.

The gunman who opened fire inside Pennsylvania’s UPMC Memorial Hospital faced the death of a loved one who’d been in the ICU just days before the shooting.

Cause of death released for UPMC Memorial Hospital shooter