The Dallas police officer who fatally shot her neighbor in his own apartment was fired on Monday after an internal review of the incident.

Police Chief U. Reneé Hall fired officer Amber Guyger during a disciplinary hearing, the Dallas Police Department said in a statement. Guyger, who was hired in November 2013, can appeal the decision, it added.

An internal affairs investigation found that Guyger "engaged in adverse conduct" when she fatally shot her neighbor, Botham Jean, earlier this month.

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Guyger, who is white, returned to what she says she believed to be her apartment, but mistakenly entered her neighbor’s unit. Guyger said she believed Jean, who is black, to be an intruder and shot him.

He was later pronounced dead at a Dallas hospital.

Guyger was arrested and charged with manslaughter days after the incident.

A lawyer for Jean’s family said at a press conference that Jean was unarmed when Guyger entered the apartment.

Jean’s death has sparked calls for justice nationwide and reignited the conversation around police brutality and racial tensions.

National Rifle Association spokeswoman Dana Loesch had a one-word response to Guyger’s firing.

“Good,” she tweeted.

Loesch sparked controversy by saying earlier this month Botham Jean might be alive if he were a gun owner.

--Updated at 12:22 p.m.