Mountain lions do occasionally attack humans, and when they do it makes headlines across the country. However, it has been reported that people are seeing something else--attacks by large black cats. Pictures and law enforcement encounters prove a big black cat is out there, while it resembles a mountain lion, there is no such thing as a black mountain lion. From Texas to Minnesota to West Virginia, follow the eyewitness accounts and physical evidence of these demon cats. Bones from a carcass that eyewitnesses claim was a huge black cat will be put to the DNA test. One-part history, one-part science and one part monsters discover the truth behind legendary monsters.