LARGO — The 70-year-old owner of a Largo music store was arrested Thursday after police said he peddled synthetic marijuana. William Zaharoff, of Clearwater, faces felony charges of possession and sale of a controlled substance. Largo police with a search warrant seized "Spice" and "additional substances" from Smokin' CD's at 2865 East Bay Dr. early Thursday afternoon, Lt. Mike Loux said. The synthetic marijuana was being sold openly, Loux said. It was unclear Thursday whether Zaharoff, who had not been previously arrested in Pinellas County, knew the transactions were illegal. Largo detectives started investigating suspicious sales at the music store in May, Loux said. Zaharoff remained Thursday in the Pinellas County Jail in lieu of $30,000. Smokin' CD's is billed as "a music store and a whole lot more."