Kim Potter, the former suburban Minneapolis police officer who said she confused her handgun for her taser when she fatally shot Daunte Wright, has been sentenced to two years in prison.
Mr Wright's family denounced the sentence as too lenient and accused the judge of giving more consideration to the white officer than the black victim.
The sentence is below state guidelines. Mr Wright's parents called her punishment a slap on the wrist, adding that they have lost their son forever.
Mr Wright was killed after Brooklyn Center officers pulled him over for having expired license tags and an air freshener hanging from his rear-view mirror.
Potter was convicted in December of first- and second-degree manslaughter in the April 11 killing of Mr Wright, a 20-year-old black motorist.
She was sentenced only on the more serious charge in accordance with state law.
Mr Wright's mother, Katie Wright, said after the sentencing that Potter "murdered my son," adding: "Today the justice system murdered him all over again."
She also accused the judge of being taken in by a "white woman's tears" after Potter cried during her pre-sentencing statement.
For someone with no criminal history, such as Potter, the state guidelines on first-degree manslaughter range from slightly more than six years to about eight-and-a-half years in prison, with the presumptive sentence being just over seven years.
Speaking before the sentence was imposed, a tearful Ms Wright said she could never forgive Potter and that she would refer to her only as "the defendant" because Potter only referred to her son as "the driver" at trial.
"She never once said his name. And for that I'll never be able to forgive you. And I'll never be able to forgive you for what you've stolen from us," said Ms Wright, who also sometimes uses the last name Bryant.
Potter offered an apology to Mr Wright's family, then spoke directly to his mother: "Katie, I understand a mother's love. I'm sorry I broke your heart … my heart is broken and devastated for all of you."
The judge who imposed the sentence called it "one of the saddest cases I've had on my 20 years on the bench".
Judge Regina Chu said she received "hundreds and hundreds" of letters in support of Potter.
"On the one hand, a young man was killed and on the other, a respected 26-year veteran police officer made a tragic error by pulling her handgun instead of her taser," Ms Chu said.
Judge Chu said the lesser sentence was warranted because Potter was "in the line of duty and doing her job in attempting to lawfully arrest Daunte Wright", and Potter was trying to protect another officer who could have been dragged and seriously injured if Wright drove away.
The judge said Potter will serve the standard two-thirds of her sentence, or 16 months in prison, with the rest on parole.
She has earned credit for 58 days that she has been in the state's women's prison in Shakopee since the guilty verdict.
ABC/wires