system
A chat on 4chan
human
I tell you that was some Mandela Effect shit. For YEARS it was an internet myth and then suddenly it was real, they knew who did it and he had been caught, prosecuted and been in prison for over a year.
gpt
It was an urban legend for years, pretty sure it circulated a long time before they caught the guy and his chick. That doesn't really make it Mandela Effect, it was just so obviously the definition of (and source of later myths) 'the absolute darkest shit exists on the dark web'. The Grifter and a lot of shitty creepypasta are just retellings of that actual video filtered down into the regular internet, albeit the darker parts of it.