Houston Police Department patrol officer observed a suspicious vehicle with its headlights off. Officer activated his emergency lights and sirens in an attempt to initiate a traffic stop. The occupant and driver of the vehicle got out of the vehicle and produced a revolver and shot in the direction of the officer and fled on foot. The officer gave chase to the front porch of a sunglass shop business. The suspect again pointed the revolver directly at the officer and fired a single shot at him. Fearing for his life, the officer drew his duty weapon and returned fire striking the suspect one time in the leg. The suspect was transported to the hospital and is in stable condition.