Every breakthrough seemed to increase the mystery. They discovered a brown suitcase that had apparently belonged to the man, but that only revealed more clothes with the tags removed, and the aforementioned jacket.
The cops also discovered a secret pocket in the man's pants, which contained a scrap of paper with the words "Tamam Shud" printed on it (the words meaning "ended" or "finished").
The text looked like it was a scrap torn from a book. And it turned out it was; from a collection of poems called The Rubaiyat of Omar Khayyam. And not just any Rubaiyat, but a specific translation, and an extremely rare one at that.
This was pointed out after police did an Australia-wide search as if the book was the ark of the goddamn covenant, presumably braving Indiana Jones-esque temples and solving ancient aboriginal riddles before some dude mentioned he found a copy of that exact book in the back seat of his car right around the time and location of death.
Sure enough, "Tamam Shud" was missing from the books pages. Instead of a library card with the dead man's name printed on it or something even a little bit helpful, the book contained the clue that would take the mystery from "spooky" to "officially starting to piss us off."
It Gets Weirder:
In the back of the book, the cops found this code: