A Dorchester man was convicted of first-degree murder in the 2014 death of a 20-year-old man who was shot the week before Christmas in Roxbury, the Suffolk district attorney’s office announced Friday.
Amir Richardson, 27, is facing a mandatory sentence of life in prison for the slaying of William Davis Jr., the district attorney’s office said in a statement.
Sentencing is scheduled for Feb. 22.
The jury’s guilty verdict reached Wednesday concluded the year’s first homicide trial.
“I’m grateful for the work of my prosecutors, victim witness advocates, and the Boston Police homicide detectives who worked to hold Richardson accountable for his actions not only to the Davis family, but to our community as a whole,” District Attorney Rachael Rollins said in the statement.
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Richardson’s lawyer could not be immediately reached for comment Friday night.
Richardson shot Davis three times on Dec. 17, 2014 in the area of 555 Dudley St. after 1:30 p.m., according to the statement. Davis was taken to Boston Medical Center, where he died.
After the shooting, Richardson got in a GMC Terrain, with two other men inside, and fled the scene.
One of the men, 31-year-old Marqueese Skinner, of Dorchester, pleaded guilty in 2017 to being an accessory after the fact to murder, according to the statement.
When investigators searched the SUV, they found a red jacket Richardson had been observed wearing during the shooting and a revolver with six spent shell casings, which were ballistically matched to bullets recovered from Davis’ body.
“Our office has worked diligently since the afternoon Mr. Davis was murdered to support his family and loved ones through the most devastating event imaginable and to help a community shaken by this act of violence,” Rollins said.
Alejandro Serrano can be reached at alejandro.serrano@globe.com.