It's all fake, he even said so himself.
Quote from him:
"I have a ridiculous amount of mail right now, but rest assured I will get to each and every one of your letters. Thank you for your interest in this story and thank you for supporting it.
Just so everyone is clear – the story is not over yet, but it is paused for now. Check the menu bar for new links being put up of the Archive/Stories/Q&A, these are all coming tomorrow."
Meaning that, it was all fictional. It's a 3 part story thing. First the videos, then
this* website, then a puzzle game of sorts.
*NOTE: The website works on and off. I have not gone onto the website myself, scary stuff may be on there. Look at your own risk.