Brittany Powell was 27 and from Pittsburgh, Pennsylvania. She was killed on March 9, 2016, when two gunmen opened fire at a late-night cookout at her home in Wilkinsburg. The attack was a mass shooting that also killed her sister Chanetta Powell, who was 25 and eight months pregnant, four other victims, and the medical examiner ruled Chanetta’s unborn child’s death a homicide, bringing the total fatalities to six.

Police described the shooting as planned and calculated, saying the gunmen appeared to target one or two people, possibly in reprisal for an unsolved 2013 homicide. Two men, Cheron Shelton and Robert Thomas, were charged; charges against Thomas were later dropped, and Shelton was acquitted at trial in 2020. The Allegheny County District Attorney’s office announced a reward of up to $20,000 for information leading to a conviction. Brittany was a mother of five; her family held fundraisers to cover cremation and services, and investigators noted limited cooperation from her brother LaMont Powell, a survivor, which hindered the probe.

Does anyone have credible information about the planning or motive behind the attack or about people present that night?