Please answer the following question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: What is a Navajo witch called? Title: Skinwalkers Movie plot: Joe Leaphorn, a seasoned cop accustomed to the city ways of Phoenix, Santa Fe, and Albuquerque, has returned to the Navajo reservation. His wife Emma is recovering from cancer and feels rejuvenated by the landscape and people of her homeland. Leaphorn is less sure about their return. Well schooled in urban policing, he is soon confronted with a particular Navajo case: a mysterious killer who has a special antipathy for medicine men. Leaphorn works with a partner Jim Chee, an FBI Academy grad who is also training to be a traditional Navajo healer. Roman George's body is found miles from his abandoned truck and surrounded by ancient symbols etched in blood. A local archeologist holds the key to the symbols he left behind, so Chee and Leaphorn pay him a visit at a nearby Anasazi ruins. There, these partners find further clues indicating that the murderer may be a "skinwalker," a Navajo witch with the power to shape shift, or change from human to animal, move with lightning speed, and to kill with curses. Fearing that his mentor, Wilson Sam, will be next, Chee convinces the medicine man to hide in a nearby motel. As Chee juggles the day-to-day police work on the reservation, Leaphorn tracks down clues to the identity of the evasive criminal. More ancient symbols are found at an abandoned paint factory, where a local gang has been congregating. What do the signs mean? Who is sending these messages in blood? Could the murders be linked to the old Dinetah Paints scandal and lead poisoning in the region? Chee does not have much time to mull these questions over, before finding himself in the killer's crosshairs.[3]
A:
A Skinwalker