This week’s CNN Hero is a remarkable young man from Colombia. Jeison Aristizábal grew up with a serious disability

The obstacles he faced seemed insurmountable. Today, he's in law school. And he's dedicated his life to helping other kids just like himself. To see how Jeison is changing lives with his Asociación de discapacitados del valle – watch his full story at CNNHeroes.com. And while you’re there, nominate someone YOU think should be named a CNN Hero.