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.

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,

Officials said the gunman was fatally shot by the police and that two officers and three staff members at UPMC Memorial hospital in York County, Pa., were wounded but were in stable condition.