Michael Slager, the former South Carolina police officer who shot and killed an unarmed black man named Walter Scott in 2015, faces a sentence of 19-24 years in federal prison on Thursday.

Slager pleaded guilty in May to a federal charge of deprivation of rights under color of law, and a federal judge said Thursday he committed second-degree murder and obstruction of justice, according to ABC News. The formal announcement will come later Thursday, but ABC News cited sentencing guidelines handed down by the judge to determine the length of Slager's sentence.

In April 2015, Slager, a former police officer with the North Charleston Police Department, stopped the 50-year-old Scott’s vehicle for a broken brake light.

Scott fled on foot, and Slager chased after him. The former police officer used his Taser on Scott, who first fell to the ground, and then got up and ran away.

Slager then fired eight shots, and five hit Scott.

A bystander caught the incident on video, sparking outrage and protests nationwide.

After the shooting, Slager was fired from the force.

Slager also faced state murder charges, but the case ended in a mistrial last year.