The gunman who held intensive care unit staff hostage at UPMC Memorial Hospital in Pennsylvania before killing a police officer and injuring five other people Saturday believed that more could have been done to save his wife,

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.

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.