A wealthy eccentric was found dead in his locked mansion study during a heatwave. The AC was turned off, the windows were sealed shut, and a portable electric space heater was running at maximum output next to his chair. On his desk was a suicide note written in shaky handwriting. Detective Frost read the note, smiled, and called for a homicide team. Why?
The handwriting under heat
If the room was sweltering due to a space heater during a heatwave, ink from a pen would behave differently, but more importantly, a person committing suicide by heat exhaustion wouldn't intentionally turn on a space heater in a heatwave—that is an active torture method inflicted by an outside killer.
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: Medium. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
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