It was last year that police officer Amber Guyger stepped into the apartment in Dallas and saw a man sitting on the couch. Instinctively, she picked up her service weapon, and shot at the man she thought had broken into her apartment.

Botham Jean, a black 26-year-old man, died in what Guyger thought was her apartment. But it turned out she was wrong.

She had gone into the wrong apartment and shot Botham Jean in his own sofa.

She has now been sentenced to ten years in prison.

Shared racist views on social media

Amber Guyger is the first police sentenced in Dallas since 1973, and the case has attracted considerable attention. According to NBC News, she had shared racist views on social media which in turn has sparked the debate about police violence against racist people in the US.

Prosecutors had pleaded guilty to 28 years in prison - a symbolic figure when Botham Jean would have celebrated his 28th birthday the week before the trial ended. When the news of the 10-year prison sentence came, Botham Jean's brother gave an emotional and unexpected speech.

In the clip above you can see when he forgives the police who shot his brother to death.