The Dark Tower: 15 Easter Eggs You Probably Missed
9. Mr. Mercedes
The Dark Tower does a decent job of subtly plugging other Stephen King adaptations, such as the forthcoming IT remake. Another is the Mr. Mercedes TV show which recently started airing on the Audience network.
After killing Jake's mother and douche of a stepfather, the Man in Black leaves a familiar calling card at the youngster's New York apartment.
Painted on his bedroom wall, probably in the ashes of his dead ma, is the words 'Hello There' along with a smiley face, a symbol Mr. Mercedes' mysterious killer also leaves behind at crime scenes.