After killing 40-year-old Terence Crutcher last week, Shelby's attorney Scott Wood revealed that the officer had a temporary loss of hearing during the confrontation.
Scores of people gathered to say farewell at a memorial service for Terence Crutcher. Family and friends recalled him as a loving father with a passion for singing gospel music.
The Tulsa County District Attorney's office said that Shelby acted "unreasonably by escalating the situation from a confrontation," and became "emotionally involved," according to an affidavit obtained by ABC News.
A full toxicology and autopsy report wasn't readily available at the time of reporting, according to KOCO.