During a blizzard, a traveler was found dead in a roadside tent. The zipper was jammed from the outside, and snow was packed high against the canvas walls. Inside, an unlit gas stove sat next to a box of matches. The coroner ruled out hypothermia and carbon monoxide poisoning. What killed him?
Suffocation
With heavy snow packed high against the canvas walls and a sealed tent, the air supply inside became depleted, leading to suffocation rather than carbon monoxide or freezing.
About this riddle
Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.
Difficulty: Hard. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
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