On Wednesday afternoon, a gunman killed four people during an active shooter incident at a medical facility in Tulsa, Oklahoma.
Michael Louis, the shooter, reportedly killed two doctors and two other individuals on June 1 before turning the gun on himself at the Saint Francis Hospital.
The incident occurred in the orthopedic offices of the Warren Clinic on the second level of the Natalie Medical Building, authorities stated on Thursday.
Louis had entered the facility with the intent of killing his surgeon, Dr. Preston Phillips. The shooter reportedly blamed Dr. Phillips for his continued back pain following an operation on May 19, according to City Police Chief Wendell Franklin.
Louis spoke with Phillips’ office numerous times over the next few weeks, and on May 31, he met with the doctor for additional treatment.
The following day, police received a call around 4:53 p.m. from someone off-campus who was on a video chat with a doctor in the building.
“The doctor told her to call 911, saying there has been a shooting,” said Franklin.
Around 5:24 p.m., a woman called the Cherokee County Sheriff’s Office stating that her husband had killed multiple people at Phillips’ office. She had no idea what he planned to do, according to police, but he called her either before or during the shooting to inform her about his actions.
The suspect legally purchased one of the firearms, an AR-15 style rifle, earlier that afternoon, according to Franklin. Louis also purchased a semi-automatic weapon on May 29 from a pawn shop.
Officers reportedly discovered a note on Louis’ body that stated that he intended to kill Phillips and anybody else who stood in his path.
Aside from Dr. Phillips, Dr. Stephanie Husen, receptionist Amanda Glenn, and patient William Love were also killed in the shooting, according to officials.
The victims just “stood in the way, and Louis gunned them down,” said Franklin. The number of other individuals wounded in the incident is currently unknown.
The shooting in Tulsa is the 233rd mass shooting in the United States this year, according to the Gun Violence Archive.