An affidavit said Shelby became "emotionally involved to the point that she overreacted" on a Tulsa street while dealing with Crutcher, an unarmed black man, on Sept. 16. The criminal complaint said Shelby's fear "resulted in her unreasonable actions which led her to shooting" Crutcher. She is accused of "unlawfully and unnecessarily" shooting him after he did not comply with her "lawful orders."

Information from The Associated Press was used in this report.