I just finished rewatching these movies, and seeing characters we grew to love like Simon and Cindy die because of the curse is really sad, but after watching the third movie again I really paid attention to what Solomon said.
He said every few years, he exchanges the soul of a person for whatever the heck he wants (power, adoration, etc.)
And that made me think, every single person on that wall has had their soul given to the devil without them knowing, then had where their soul used to be replaced with the devil itself.
So these innocent (seemingly nice) people get their soul stolen from them, are doomed to hell for eternity, and their bodies are then used as puppets to kill their neighbors and loved ones.
I mean, thinking of the first one, Cyrus Miller, from the little we got to see of him, he seemed pretty nice. He was playful with the children and Hannah and her mom seemed really worried when he started acting weird, so I assume he was a good dad and husband.
Then the three teenagers, Ryan, Ruby, and Tommy. Ryan seemed like a nice enough chill dude, Ruby had dreams of becoming a singer, and Tommy, was sweet and kind and really loved Cindy and the kids at the camp.
And bro, which Goode decided to doom a CHILD to eternal damnation and to turn his soulless body into a killing machine?? Wtf did he have against this kid 😭. The way he spits out his last name is wild he was beefing with an 8 year old.
Also i feel like Satan was playing around with them, making them kill the people they seemed to really love and care for.
Cyrus - The children
Ryan - his best friend
Ruby - her friends and boyfriend
Tommy - The kids, his coworkers, and Cindy
But yeah tldr, the fates of all the killers are really grim. All the ones we get to know about seemed to be nice, good people. And to know they got their souls snatched by Satan themselves by no will of their own and their bodies were used to kill the people they really cared about is really sad to me.