Twice, prosecutors tried to convince jurors that Ray Tensing, a white University of Cincinnati police officer, was guilty of murder in the death of Samuel DuBose, an unarmed black driver. Twice, jurors deadlocked and failed to reach a verdict. Prosecutors declined to seek a third trial. Mr. Tensing, who had been fired shortly after the shooting, was later reported to have reached a settlement with the university that included legal fees and nearly $ 250,000 in back pay.
Baltimore erupted in large, sometimes violent, protests in 2015 when Freddie Gray, a black man, died after suffering a spinal cord injury while in police custody. The local prosecutor charged six officers in connection with his death, but none were convicted. Federal prosecutors declined to file charges.
In the last year, three officers have been convicted of murder.
Roy D. Oliver II, a white police officer in Balch Springs, Tex., shot and killed Jordan Edwards with a high-powered rifle as Jordan, who was black and 15, and other teenagers drove away from a house party in 2017. Mr. Oliver was convicted of murder last summer and sentenced to 15 years in prison, a sentence Jordan’s family called too lenient.
Mohamed Noor, a Minneapolis police officer, said he feared for his life when Justine Ruszczyk, a white woman wearing pajamas and holding a glittery cellphone, approached his squad car on a summer night in 2017. Mr. Noor, who is black, shot and killed her. Jurors did not accept his account, and convicted him of murder this year. He was sentenced to 12.5 years in prison.
A 2014 video showing Jason Van Dyke, a white Chicago police officer, firing 16 shots into Laquan McDonald, a black teenager who had been holding a knife, touched off political upheaval and led to an agreement to overhaul the city’s Police Department. Jurors found Mr. Van Dyke guilty of murder last year — the first such conviction for an on-duty Chicago officer in decades — and he was sentenced in January to nearly seven years in prison. Laquan’s family and the Illinois attorney general called the sentence inadequate.