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

A gunman, armed with a handgun and carrying zip ties, went inside UPMC's ICU, and took staffers hostage before he was ultimately killed by police in a shootout, the York County DA said.

Workers at a Pennsylvania hospital who were injured during a shooting that left the gunman and a police officer dead were reported “medically stable” Sunday as the hospital remained closed to visitors,