The Mormon Bigfoot Genesis Theory - 10 Zen Monkeys:
"The Journal of Mormon History recently published a new investigation into stories suggesting that the giant Sasquatch monster is really Cain, the murderous second son of Adam and Eve.
It may not be the first controversy tackled by new Mormon President, Thomas S. Monson. But the article's author, Matthew Bowman cites a 1919 manuscript describing Hawaiian missionary E. Wesley Smith "being attacked by a huge, hairy creature, whom Smith drives off in the name of Christ" the night before the mission was dedicated. His brother tells him the attacker must've been Cain. ("Now therefore cursed shalt thou be upon the earth, which hath opened her mouth and received the blood of thy brother at thy hand...a fugitive and a vagabond shalt thou be upon the earth.") And then he refers him to a story by a celebrated Mormon martyr who was one of Joseph Smith's original twelve apostles.
...There's already been a controversy about the Mormon church's teachings on Cain. Brigham Young believed that God punished Cain's ancestors, and that "the mark of Cain" was: black skin. The same belief continued through a 1966 edition of the church reference book Mormon Doctrine, and black Mormons were banned from the church's priesthood. .."