As the store owner parked her SUV, Martin approached her with a gun and told her to get out.
Officers tell us Martin took the SUV, heading north on Green River Road.
Minutes later, he was found a short distance away at the the Sugar Mill Creek Apartment Complex.
Martin refused to surrender and tried to flee the scene in the stolen SUV.
We're told Martin drove into a field next to the apartment complex and got stuck, then tried to run away on foot.
Officers caught Martin and found his gun inside the SUV.
He was arrested for armed robbery.