Nation Ex-Texas officer found guilty of manslaughter in fatal 2019 shooting of Atatiana Jefferson December 15, 2022 N'dea Yancey-Bragg, USA TODAY Comments Off on Ex-Texas officer found guilty of manslaughter in fatal 2019 shooting of Atatiana Jefferson Former Fort Worth police officer Aaron Dean was found guilty of manslaughter in the fatal shooting of 28-year-old Atatiana Jefferson in 2019.