A teenage employee at an Olympia, Washington, McDonald's was recently arrested for a credit card skimming scheme that netted him more than $15,000, the Bellingham Herald reports. The unnamed defendant worked the drive-through window at the restaurant. He would allegedly swipe customers' credit cards twice - once to pay for an order, and then a second time on his own skimming device. His scheme took place between October 10 and November 9. Police were able to pinpoint the location of the crimes after multiple members of the Washington State Employees Credit Union began filing claims for fraudulent credit card use despite not having lost their cards. Investigators realized a common link among victims was their purchases at the McDonald's in question - and the fact that the defendant was always working during the time of the crime. "This is not a small-scale operation by any stretch of the imagination," Thurston County deputy prosecutor Wayne Graham told the media outlet. So far, at least 16 victims have been identified. Kim Anderson, owner of the Olympia McDonald's, told KING5-TV that this was an "isolated incident which we take very seriously."