Kidnapped|Creepypasta Crossover Supernatural

When Lucus Keaton- or Liu for short- was eleven, his sixteen year old brother brutally murdered they're parents, and mutilated the youngers face. Now, two years later, thirteen year old Liu is now kidnapped, when he is ever so suddenly grabbed by a man who in turn disappears. And of course, whose better at facing the supernatural than the Winchesters?
*Warning! This fic will contain every possible trigger warning from physical abuse to sexual abuse, please be warned.