TULSA, Oklahoma (AP) — A police captain says multiple people have been shot at a Tulsa medical building on a hospital campus and “some unfortunately were killed.” Tulsa police said in a Facebook post just before 6 p.m. Wednesday that the shooter was dead. It was unclear how the shooter died. St. Francis Health System locked down its campus Wednesday afternoon because of the situation at the Natalie Medical Building. The Natalie building houses an outpatient surgery center and a breast health center. Aerial footage from a TV helicopter appeared to show first responders wheeling someone on a stretcher away from the hospital building.