he was looking for his doctor
Tulsa mass shooter allegedly gunned down his doctor after asking for help with pain
https://abcnews.go.com/US/tulsa-mass-shooter-allegedly-gunned-doctor-pain/story?id=85131370
On May 19, the suspected gunman underwent back surgery.Dr. Preston Phillips one of the four people killed in the shooting at the Natalie Building, a five-story medical complex at Saint Francis Hospital was the suspect's doctor in that surgery, Tulsa Police Chief Wendell Franklin said at a news conference Thursday.