The man who authorities say entered a Pennsylvania hospital with zip ties and a pistol over the weekend had recent contact with the hospital's intensive care unit, where he took staff members hostage and was killed in a shootout that left a police officer dead and others injured. Investigators released no new information Sunday about a possible motive for the shooting at UPMC Memorial Hospital in York on Saturday, in which a doctor, nurse, custodian and two other officers were injured. MORE: https://www.wthr.com/article/news/nation-world/officer-killed-shooting-pennsylvania-hospital/507-578910a0-d498-4a0d-82ba-ac016b4158d5