Five Nights at Freddy's (2023)

Vanessa: Have you met them yet.
Mike Schmidt: Met who?

Trivia: Minor Spoilers: There's a mid-credits scene showing the cab-driver being frightened by the Balloon Boy figure appearing in his car. And in the final moments of the credits, the music volume lowers, and we hear a robotic voice spell out the words "Come find me."

TedStixon

Question: Has any explanation ever been given for why William Afton murdered children and how he was able to transfer their souls into the animatronics?