Amber Guyger's employment with the police department was terminated Monday following a hearing.
Police said in a news release that she was sacked after an internal investigation found she had engaged in "adverse conduct" when she was charged with manslaughter.
Under civil service rules, Guyger has the right to appeal her discipline, the statement reads. Police did not comment on whether Hall is still concerned about her administrative action compromising the criminal investigation. She told the city council's Public Safety Committee that she is ending the 72-hour wait period for obtaining statements from officers who are involved in shootings. Guyger allegedly gave verbal commands, because she believed her apartment was being burglarized, and then drew her weapon and fired twice, the affidavit said.
After revealing that they had found marijuana at Jean's home, a lawyer for his family accused the police force of trying to "smear" his reputation. She remains free after posting $300,000 bond on a manslaughter charge. Inside, the lights were off, and she saw a figure in the darkness that cast a large silhouette across the room, according to the officer's account.
Guyger, a patrol officer, was hired by the Dallas Police Department in November 2013.
Some of the demonstrators rolled empty coffins as they marched outside AT&T Stadium in Arlington, Texas, ahead of Sunday's Cowboys game to protest recent fatal police shootings.
Jean family attorneys and protesters have been calling for her to be fired since the shooting.
Officials said a grand jury will hear the case. Check back for more details.