Next time you're hiking in the woods, especially near private property, keep a sharp eye out for purple paint. It might be on trees, fences, rocks, or any other features within the forest.

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Vector high temperature warning square sign. Extreme hot thermometer temperature conditions danger heat symbol, banner, poster or sticker for public places. Illustration isolated on background.

Thus in his act of ultimate terrorism, he demolished a symbol in order to vanquish a threat that was entirely conceptual, killing thousands of real, flesh-and-blood humans in the process.