Who is One nightmaresmile?

Who or What is One_nightmaresmile?
Nobody knows who this is because well.. they're not pure of fame, and well, there's nothing unsettling about it. Many people believe it's just some kid on the internet for attention. Especially with the name like that. Who would possibly care about them? You may be asking your self this question right now. But let's go deeper.

Vault 8166, and Youtube username File
Exactly when you go on youtube, and type in 'Vault 8166' You'll most likely see the username called file. Looking into his videos, you'll see the outside entrance videos. In vault 8166, there's an incident, a red creature. In Vault 1, there's a dark dark red creature. They both resemble a reptile. People have said that this has been everywhere in many vault like places. Roblox vaults are said to keep models that give players viruses (computer viruses), and users. I highly recommend to read about it on this wikia. File has about five different personalities. Meaning many people may share the same account.

Im_not_home_yet.mp4
This is the creepiest videos i've seen. The music in the background is playing `` The muffin the man ``. People said this is his house. Or his room (green painted walls.) But yet we see him come out of the closet. He walks around, obviously doing a 'tour'. I have been thinking, he has been away for a month. So maybe he's stalking a child.. but nobody is sure about this. People are starting to think something is wrong.

One_Nightmaresmile, Two_nightmaresmile, One_Happysmile -- The family
This is what we call the family. One is turning back to black. Two is supposedly dead, or gone. People said that One_Happy is One's daughter. Now, for Two_nightmaresmile's real life name. Her name is Emily. Nobody knows who One's or Happy's are..

(Will add links later. at school.. you can add them.)