Police say the latest heist occurred Friday night at the Saxonburg Pharmacy in Butler County, about 30 miles north of Pittsburgh.
Police say the man wore the wig, a baseball cap with duct tape over the logo, and a handkerchief over his face. They say he had a pistol and took several bottles of Oxycontin, a time-release pain reliever that is frequently abused by addicts and sold on the street illegally.
They believe the same man is responsible for recent pharmacy robberies in the nearby communities of Freeport, Mars and Butler Township.
