One of Pitt quarterback Mason Heintschel's best friends, Lukas Mason, was struck by a car while riding his bicycle just outside of Clay High School in the summer after seventh grade. The 13-year-old died the next day. The loss of a joyful boy with an innate ability to make others laugh rocked the town of Oregon, Ohio, just east of Toledo. Heintschel's response, then and now, offers clues to how he has handled his meteoric rise — from anonymous third-stringer to national star in less than six wee