A 61-year-old man who attempted to stop two armed men after they held up a bank in Ilion, western Athens, was killed yesterday because he thought the assailants were using fake guns, police said. The holdup took place at a National Bank branch at around 10 a.m., when the two armed men entered the bank and ordered employees to hand over the money before firing a warning shot into the air. The two culprits, who were both wearing black motorcycle helmets, then ran out of the bank where they came across the 61-year-old who had been about to enter the branch. The man ordered the two culprits to halt and said he was not afraid, accusing them of wielding fake weapons. One the assailants then shot the man four times at close range, killing him instantly. Another two people also suffered slight injuries from bullets that ricocheted.