harlan and michael discuss the evidence and conclude that the killings were committed by dogs, who have formed packs via michael's theory that pheromones cause animals of a particular species to unite and act as one. it is possible that the pheromones are coming from a top secret government experiment being conducted at a linear accelerator near the school. harlan and michael share their conclusion with the su president, dr. martin koppelman (sterling swanson), and ask him to warn people to keep their dogs home at night. koppelman, believing that harlan and michael are wrong, declines their request. harlan says he will give them warning himself, and koppelman threatens him with firing if he does.