In the 1950s, strange reports of attacks coming from within the Ohio river began to surface. The most famous case is that of Naomi Johnson, who was pulled under by something with a powerful, deliberate grip and clawed hands in 1955. After her escape, she discovered a bizarre, bright green, non-human handprint on her leg that lasted for two weeks. Days later, a man claiming to be an Air Force Colonel appeared at her door, knew details about the mark no one else did, and classified the incident as