Wendigo
In Algonquian folklore, the wendigo () or windigo is a mythical man-eating monster or evil spirit native to the northern forests of the Atlantic Coast and Great Lakes Region of the United States and Canada. The wendigo may appear as a monster with some characteristics of a human or as a spirit who has possessed a human being and made them become monstrous. It is historically associated with murder, insatiable greed, and the cultural taboos against such behaviours.
To Protect and Serve Man
In the present, a day before Ferren's execution, now knowing about the Wesen, Hank tells Nick (David Giuntoli) that Ferren may be right about the Wesen and asks for help in proving his innocence. When they find a drawing of what Ferren saw, Nick discovers it's a Wendigo. These Wesen are cannibals that kill humans and put their bodies on their houses. They go to the house's location to find the bodies but discover that a grocery store was built on the house.