(KAIR)--An Effingham teen is behind bars, accused of executing a fraudulent scheme at an Atchison business, where he was employed, to steal a little more than $1,200 from the business.

Atchison Police Chief Mike Wilson says arrested is 18-year-old William Schmalstieg.

“On Tuesday evening we investigated a theft that occurred at the O'Reilly Auto Parts located at 819 Main,” Wilson said. “It was determined that between Aug. 17, 2016 Feb. 10, 2017, an 18-year-old employee had fraudulently had obtained cash from the business.”

Wilson said Schmalstieg faces charges of theft and unlawful computer acts.

“He had a fraudulent scheme ongoing between those dates and it involved fraudulently returning merchandise for cash and the utilization of the store's computer/cash register,” Wilson said. “That substantiated the charge of unlawful use of a computer.”

He said Atchison police were alerted of the case from O'Reilly Auto Parts Regional Loss Prevention Office.

Schmalstieg remains in the Atchison County jail without bond at this time.