Then he saw Shannon jerk away from that aid, walking stiffly toward Casa Grande while Rennie stood for an instant looking after the younger man before following him.
Shannon had to get to Casa Grande fast before his Father left.
mnli hypothesis: Shannon had to get to Casa Grande fast before his Father left. premise: Then he saw Shannon jerk away from that aid, walking stiffly toward Casa Grande while Rennie stood for an instant looking after the younger man before following him.