Three people have been arrested and charged with murder in the killing of a Paterson woman found beaten to death last week in the trunk of a vehicle, authorities said. The body of Stephanie DeJesus, 38, was found about 8 p.m. last Friday after police received a report of a suspicious vehicle parked at James Street and Ryerson Avenue in Paterson, according to Passaic County Prosecutor Camelia M. Valdes. Detectives first believed DeJesus had died of a gunshot wound, but a medical examiner determined at autopsy that DeJesus died of “blunt-force trauma,” Valdes said. Justin Fisher, 29, Ali Gibson,…