Garth takes his daughter lea and her friends luke and hans to the lake. while horsing around on the dock, luke deliberately shoves hans into lea, causing lea to fall into the water. lea lands awkwardly and sinks to the bottom. hans pushes luke back, ignoring lea’s plight. chewie, a bystander and an expert swimmer, glares at luke but takes no other action. garth confronts the group, demanding that they do something. if lea drowns, would any of the witnesses be criminally liable? explain.