The gunman who held intensive care unit staff hostage at UPMC Memorial Hospital in Pennsylvania before killing a police officer and injuring five other people Saturday believed that more could have been done to save his wife,

On Saturday, Archangel-Ortiz returned with a bag full of zip ties and a semiautomatic handgun, police said. He shot and wounded three hospital staffers — a doctor, a nurse and a custodian — and took them hostage inside the ICU, cops said.

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

A funeral service will be held later this week for a Pennsylvania police officer who was killed last weekend while responding to a gunman inside a hospital intensive care unit

The suspect, Diogenes Archangel Ortiz, entered the hospital with handgun and zip ties Saturday morning and took several staff members hostage, state officials said.

Ortiz, 49, carried a pistol and zip ties into the intensive care unit at UPMC Memorial Hospital in southern Pennsylvania’s York County and took staff members hostage Saturday before he was killed in a shootout with police,