Despite numerous challenges, USC running back jukes his past - and other obstacles - to earn his degree By JOSEPH PERSON - jperson@thestate.com GERRY MELENDEZ/GMELENDEZ@THESTATE.COM Cory Boyd shares a lighter moment Monday with other graduating teammates, including Blake Mitchell, back left. Boyd is the second member of his family to earn a college degree. During the best of times, Cory Boyd figured he would play a couple of seasons at South Carolina and follow his childhood dream to the NFL. During the worst of times, Boyd thought about packing his stuff, leaving school and returning to the crime-ridden projects in...