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.

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 the Pennsylvania police officer fatally shot while responding to a hospital intensive care unit where a gunman had shot three workers and taken