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,

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.

Update: A gunman stormed a Pennsylvania hospital’s ICU and took staff hostage before he was killed by police on Saturday. An officer also died in the shootout.