(IDEX Online) - Two raiders fled smashed a jewelers' display case with a nail gun but fled when an employee pulled a gun and fired three shots.The attempted robbery took place at the Katy Mills Mall, in Katy, Texas, USA, on Friday night.The suspects - men wearing hoods, masks and gloves - were stuffing merchandise into a duffel bag when the employee started They ran off, dropping most of their haul from the bag, together with the nail gun, said police, before driving off in a stolen car. Nobody was hurt in the incident.CCTV pic shows the suspects