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 hospital on Saturday with a bag containing a handgun and zip ties.

Update: A gunman stormed a Pennsylvania hospital’s ICU and took staff hostage before he was killed by police on Saturday. An officer also died in the shootout.

Authorities described the shooting of a gunman who opened fire at a Pennsylvania hospital as “absolutely justified, beyond any and all doubt.”

An autopsy concluded his death was caused by being shot in the torso on Saturday inside UPMC Memorial Hospital in York. Andrew Duarte, 30, was declared dead shortly after noon that day at a

The man who authorities say entered a Pennsylvania hospital with zip ties and a pistol over the weekend had recent contact with the hospital's intensive care unit, where he took staff members hostage and was killed in a shootout that left a police officer dead and others injured.

A gunman who held medical staff hostage before killing a police officer and wounding five others at a hospital in south-central Pennsylvania Saturday is believed to have visited the facility in the days leading up to the incident,