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Today in History: Marvin Heemeyer’s Bulldozer Rampage Shakes Granby, Colorado

6/4/2025

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Summary

Story summary

On June 4, 2004, Marvin Heemeyer, a muffler shop owner in Granby, Colorado, went on a destructive rampage using a modified bulldozer, dubbed the "Killdozer." He demolished multiple buildings in protest against a zoning dispute before taking his own life. The incident shocked the community and highlighted tensions surrounding local governance and land use.

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Story summary

On June 4, 2004, Marvin Heemeyer, a muffler shop owner in Granby, Colorado, went on a destructive rampage using a modified bulldozer, dubbed the "Killdozer." He demolished multiple buildings in protest against a zoning dispute before taking his own life. The incident shocked the community and highlighted tensions surrounding local governance and land use.