LINCOLN, Neb. — On a crisp, mid spring morning in Lincoln, Nebraska, Jarell Roach, a senior at Southeast High School, was leaving the cafeteria following a typical forgettable lunch experience. Making his way through the random collective pockets of his peers, the whispers around him became noticeable. Speculation was growing about the whereabouts of Brandon, a classmate slated to graduate with the Class of 2000….