A Johnson City Man Is Behind Bars For Allegedly Robbing Two City Convenience Stores Within Hours Of Each Other. 46 Year Old Charles Hughes Is Charged With Two Counts Of Aggravated Robbery And Two Counts Of Theft Under 500 Dollars. The Charges Stem From Investigations Into A Suspect Who Allegedly Entered Roadrunner Markets On Sunset Drive And On Market Street, Brandished A Knife, And Demanded Money From The Cash Register In Each Incident. Hughes Is Being Held On A 52-Thousand Dollar Bond And Will Be Arraigned Soon In Washington County General Sessions Court.