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She’ll just get hired at another precinct. Her career is far from over.
In contrast, Davis, the police chief, told the council that training was not an issue for officers in this case. Instead, she blamed “egos” and a “wolf pack mentality” for the fatal incident.  

That's news, in the sense that you don't hear that from police chiefs often. >

She knows she's screwed and her career is over. She has nothing to lose by being truthful.