#the layers here

Will's disappearance is still a mystery to us. While we are told the Demogorgon took Will, I highly doubt that's the whole story.

Will's disappearance is compared to the assassination of JFK, which was a major conspiracy even to this very day.

We are given clues to Will's disappearance through these references.

Things to note:

Mrs. Driscoll believed that Johnson killed Kennedy.

Dustin believes that Oswald (the one convicted) was "just a patsy". Meaning he was not the one responsible- he was the scapegoat.

SO- "Johnson" kidnapped Will, and "Oswald" was a "patsy". Basically, things are not as they seem.

Onto the suspects:

The Demogorgon

This is the obvious "patsy" here. The Demogorgon is the one accused of taking Will... and maybe it did, however if the Demogorgon did in fact take Will, it would have been under the command of...

Vecna

Again, this one is fairly obvious. Many people already believe he was the one responsible. But it is very possible he also was a "patsy", acting as a puppet under...

Papa

If Will truly does have powers, it's easy to see how Papa could have a clear motive here. Manipulating Henry/Vecna for his own means. However, he also may be a "patsy", and the one controlling him is... *drumroll*

Mike

I know you have questions but hear me out. Mike is a writer and a DM. He creates stories and plays the villains in DnD. If he were the one creating the story here... he would the one controlling the characters. Theory post on that here.

But I have one final suspect to get to... the one who caused this all to happen in the first place...

Lonnie

If Mike were creating this story, it would be based off of real life events. He was the one who kidnapped Will in the universe where the story was created.