PHILADELPHIA, PA — United States Attorney Jacqueline C. Romero announced that Roberto DeJesus Negrin, 35, of Philadelphia, PA, was sentenced to ten years in prison and five years of supervised release by United States District Court Judge Nitza I. Quinones-Alejandro for multiple narcotics offenses stemming from his role as a drug trafficker and a leading supplier of heroin in one of the most drug-laden neighborhoods in Philadelphia.