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Detective riddle

A wealthy banker was shot in his study. The safe was open, and cash was strewn everywhere, but the diamond ring on his finger was untouched. Detective Cole looked at the scene and told his partner it was a personal vendetta, not a robbery. Why?

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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