In this timeline, I theorize that the three kids who left Charlie out in the rain where in fact, John, Jessica, and Carlton.

My head canon is that they decided that Charlie was just as worthless as Michael's younger brother was, and they left her out in the rain to get killed by William.

I also have a head canon that John, Jessica, and Carlton also put on Freddy, Bonnie, and Chica masks and helped Michael with The Bite of '83, and also had no sympathy throwards poor C.C. Afton.

The reason I have this theory is because there were three children leaving Charlie out in the rain, and another three helping Michael with The Bite of '83. Charlie also had three friends, so I can only assume those three were in fact, John Jessica and Carlton, who had turned their backs on Charlie to help Michael with The Bite of '83.

Let me know what you think about this theory and if it makes sense to you at all.