Stephen King Correctly Predicted the Killer on 'Mare of Easttown'

The series finale of Mare of Easttown aired this weekend and we finally found out who killed Erin.

While most people were surprised to find out the identity of the killer, legendary horror author Stephen King actually correctly predicted it and tweeted out his guess before the finale.

We don’t want to spoil anything for people who haven’t seen the finale yet, so stop reading now if you don’t want to know the spoilers!

Click inside to see what Stephen King tweeted…

Stephen tweeted on Sunday afternoon (May 30), “My guess as to who killed Erin in MARE OF EASTTOWN: The boy, Ryan Ross.”

Someone responded to him and said, “But why really? He is such a good kid. He protects his sister. I think he is angry and sad because of he couldn’t saved Erin.”

Stephen responded, “True, but that’s a kid with a lot of rage inside. Case in point, beating the bully with a lunch tray when the bully was mean to the girl with Down Syndrome, aka trisomy 21.”

Someone nervous about reading spoilers said, “Are these spoilers or theories?? Oh god I hope theories.”

Stephen said in response, “Just theories. I could be wrong. I was once, I think it was in 1973.”

Read all about what happened in the finale and what the series creator said about that final shot of the episode.