Manila, July 12 -- A special task group has been created to investigate the killing of radioman Eduardo "Ed" Dizon, a police official said Friday. Lt. Col. Maria Joyce Birrey, city police director, said Special Investigation Task Group (SITG) Dizon aims to speed up the probe on the radioman's murder Wednesday evening by still unidentified motorcycle-riding gunmen. "We are currently reviewing the CCTV footages that captured the crime," Birrey told Radio Station DXND here. Dizon, a resident of Tejada Subdivision here, was driving his Mitsubishi sedan on his way home at past 10 p.m. when two men onboard a motorbike opened fire on him. A former municipal councilor of neighboring Makilala town in North Cotabato, Dizon was unarmed during the atta...