The Knox County Sheriff’s Office is asking for the public’s help in identifying a man who robbed an Oak Ridge Highway store on February 17, 2010.  The white male entered the pharmacy at Walgreens around 9 p.m. at 7810 Oak Ridge Highway and demanded oxycodone and diazepam.  The clerk handed over the pills after the suspect indicated that he had an explosive device, although none was seen.  He left in a 1990 or 2000 gold or brown Buick.   The suspect is described as 40-45 years old, chubby, around 6 feet tall and 220 pounds.  He also had a pair of pantyhose wrapped around his head.  Anyone with information is asked to call the KCSO at 215-2243.