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.

Days before a hostage situation turned deadly, a physician assistant says he spoke to the man who killed a police officer and wounded staff at a Pennsylvania hospital and told him his loved one had died.