The Escambia County Sheriff’s Department has arrested a teenager for robbing a store on Pace Boulevard Sunday evening. Investigators say 18-year-old Damon Griggs went into the Family Dollar store wearing a mask and showed employees a gun and also threatened people inside the store. Responding deputies with the assistance of a K9 team, tracked Griggs down. He was booked into the Escambia County Jail on charges of aggravated assault and armed robbery.