The Brief A judge has overturned the murder conviction of Rafael Jones in the 2012 killing of Philadelphia Police Officer Moses Walker Jr. District Attorney Larry Krasner plans to appeal the ruling and seek a new trial. A Philadelphia judge has overturned the murder conviction of Rafael Jones, who was found guilty of killing Officer Moses Walker Jr. nearly 14 years ago, and ordered a new trial, according to prosecutors and court officials. Related articleJudge orders new trial in officer’s 2012 killingWhat we know:Common Pleas Court Judge Jennifer Schultz overturned the 2015 first and second degree murder conviction of Rafael Jones, 37 and ordered a new trial. "Rafael Jones is guilty that he murdered Moses Walker Jr. we believe the decision made by the judge is incorrect," said District Attorney Larry Krasner. In the meantime, Rafael Jones remains in a Pennsylvania State prison.