The premiere of IT: Welcome to Derry was marked by its intense gore and horror, as well as its willingness to kill off multiple characters from the start.
This approach sets a clear warning to fans: no character is safe from Pennywise's wrath.
Don't get too attached. Pennywise is coming for the kids of Derry, our attachments be damned.
Author's summary: IT: Welcome to Derry hints at a character's doom.