Thomas Nealy was a character in the Original Mythos and the first known adult victim of the Slender Man.
History
Thomas Nealy had a daughter. Jessica. In October 1989, she was playing with her friend. Then, it started to get dark outside. He called Jessica's friend's house, telling them that she needed to come home. But, to his surprise, they answered that she had left a half hour ago.
Worried, he headed out to look for her. They lived by some woods. He headed there first. He looked around. By now, it was really dark. He turned, feeling nauseous and saw Slender Man. It seemed to be wearing a suit, but the arms were too long, touching the ground. In one of its arms held Jessica's clothing.
It stared at him, but it couldn't have. It had no face. Nealy ran away.
Later on, Nealy was interviewed by an officer. The whole ordeal was taped. He told the officer about the thing. Suddenly, Nealy started screaming that the thing was in the room followed by the sound of gunshots,static and footsteps,and when the other officers come in the room there was no one there only the shel casing. Nealy and the officer were never found.
December 13 1996 they found the officers clothing.