Toot’n Totum and Amarillo Crime Stoppers are offering a $6,000 reward leading to the identification and arrest of the person or people responsible for a hit-and-run incident that critically injured an Amarillo girl. After 8 p.m. Friday, Caylie Howard, 16, was jogging on 58th Avenue between Washington and Tradewind streets when an unknown vehicle struck her and left the scene.