A hard-hitting radio commentator was gunned down in the southern Philippines yesterday, the latest victim in a series of killings of journalists. Armando Pace, who worked with Radyo Ukay (Radio DXDS) in the southern Digos city, 980 kilometers southeast of Manila, was shot repeatedly as he was driving home on a motorcycle at around 1 p.m., police and local media said.Senior Inspector Cesar Cabuhat, the city police chief, said Pace was hit in the back of the head and chest and was declared dead on the spot. Police quoted witnesses as saying the assailants, who were tailing Pace after he left the radio station, drove alongside his motorcycle and fired at him on a main road in full view of many people. The two men escaped and no one has claimed responsibility for the attack.