An officer lacked reasonable suspicion for a stop. The State stipulated that the officer knew, at the time of the stop, that the robbery suspects the officer was looking for were approximately 18 years old. The defendant was 51 years old at the time of the stop. Even if the officer could not initially tell the defendant's age, once the officer was face-to-face with the defendant, he should have been able to tell that the defendant was much older than 18. In any event, as soon as the defendant handed the officer his identification card with his birth date, the officer knew that the defendant did not match the description of the suspects and the interaction should have ended.