Two armed robberies in two days have investigators suspecting there may be a serial robber targeting local convenience stores.The man, believed to be responsible for both armed robberies, hit Perry’s Country Store on Monday, before striking at One-Stop Market in Centertown on Tuesday.The suspect is described as a white male with a grayish brown mustache. His getaway vehicle is believed to be a gray or silver-colored Dodge Intrepid.“We are looking at them being the work of the same person,” said McMinnville Police Investigator Lt. Nichole Mosley.The first robbery was at Perry’s Country Store, located at the three-way stop at the intersection of Yager, Short Mountain and Lucky roads. It happened around 2 p.m. Monday.“He walked in with a gun and demanded money and cigarettes,” said Sheriff Jackie Matheny, noting the man was wearing a black toboggan.