When asked to describe Slender Man, Morgan and Anissa told the respective detectives: "He's um... He's this tall faceless man who preys on children. At his own will he can like explode tendrils ...

"Slender Man" started with an online post in 2009, as a mysterious specter whose image people edit into everyday scenes of children at play. He is typically depicted as a spidery figure in a black ...