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.