Johnny Riddell attended a middle school in Chamberlain.
Chamberlain was rocked to its core by Carrie White with her telekinesis in 1979, when a prom night massacre stemming from Ewan High School wound up destroying the Ewan High School and most of the town in the process. In time it became a ghost town, that never did rebuild itself from the ashes of the disaster, because the people lost their will for that after the disaster, which also made them look like fools and assholes and therefore decided to leave the town in order to forget the deaths and the Carrietta White affair.
Since then it has become a tourist attraction for those who want to know more about the Black Prom. With its buildings and the destruction intact, it was easy to achieve that.