GREEN BAY, Wis. -- He has so many reasons to finish. For his mother, who sacrificed so much for him. For his college coach, who kept pushing him to do so, even after his departure for the NFL. And for the kids in his hometown of Eatonville, Florida, who dream of being him one day. But then Ha Ha Clinton-Dix turns on his TV. And there he sees reminder after reminder of the most important reason he continues to pursue his degree in criminal justice from the University of Alabama. Ferguson. Baltimore. Dallas. Milwaukee. Tulsa. Charlotte. The cities change. The...