Robert Quintanilla and his twin sister Arianna Quintanilla are taking their soccer talents to St. Thomas University.Robert Quintanilla, a goalkeeper, and Arianna Quintanilla, an outside midfielder, have signed to play men’s and women’s soccer for the Bobcats this fall.Both Quintanilla twins are excellent student-athletes with each graduating from Mariner High School with GPA’s over 4.0 and playing varsity soccer for all four years. Robert...