Riding atop his 18-year-old horse, Roc, B.J. Brantley waves at traffic on I-45 as he walks 7-year-old Tennessee April 24, 2009 in south Dallas. For the last seven years, Brantley had ridden horses along the I-45/I-20 interchange during morning rush hour. Known as the "Interstate Cowboy," the 66-year-old said he performs the daily activity to inspire at-risk youth in the area. "It done turned into a full-blown mission," he said. "When I see that kid's face light up, that makes my day."