Horner was last seen at his family's residence in Santa Rosa, California on February 4, 1989. He has never been heard from again. Authorities believe that Horner left his house of his own accord. He may be frequenting soup kitchens and shelters in the United States. Horner has a small scar on his lower right cheek and a chipped front tooth. He has a tattoo of a peacock and a mushroom on his upper left arm, and a tattoo of an inverted cross on his lower left arm. His nickname is Tony.