TULSA, Okla. (AP) — Tulsa's police union has filed an ethics complaint against the district attorney, saying he unfairly brought charges against an officer who fatally shot an unarmed black man.

Officer Betty Shelby has pleaded not guilty to first-degree manslaughter in the Sept. 16 death of Terence Crutcher.

The union contended in its complaint filed Wednesday that Shelby's arrest was "merely based on watching a video." It accuses District Attorney Steve Kunzweiler of failing to adhere to his own procedures.

Kunzweiler called the timing of the complaint "pretty interesting. He said he had a s...