Oct. 24—Gavin Garcia can't help but smile at the question. The Citadel running back has heard it before, but even he sometimes doesn't have a great twist on his own origin story. How does a guy who grew up in the small town of Catawissa, on the shores of the Susquehanna River in rural Pennsylvania, and more than four hours from the nearest beach, become a shark fisherman? "My whole life I grew ...