Police probing the New Year’s Eve murder of a police guard outside the British military attache’s residence in Kifissia admitted yesterday to being none the wiser about a possible motive for the attack. Officers investigating the fatal shooting of Special Guards Unit member Haralambos Amanatidis have scoured gun stores with bullets from the murder weapon to check on returns of legally owned guns but made no headway, sources revealed. Police had reasoned that, had the killer legally owned the gun used in the attack, he would have wanted to remove any link between the gun and himself. The questioning of a young man spotted outside a police station «acting suspiciously» also failed to shed any light on the affair. Despite the lack of progress, a counter-terrorism unit official told Kathimerini, «We are moving forward bit by bit.» Police had originally regarded the attack as the work of terrorists despite the lack of claims of responsibility.