Haibara deduces that if they reveal themselves, the hunter trying to get rid of them will shoot them and say that he thought they were bears. So Haibara and Mitsuhiko leave a clue for Conan in the form of different types of mushrooms that tells him who the killer is. Conan finds out that the killer is an old man who murdered a hunter in order to save a bear he calls Jubei, because the bear once saved his life.