Marvin John Heemeyer was a welder and an automobile muffler repair shop owner. Outraged over the outcome of a zoning dispute, he armored a Komatsu D355A bulldozer (known as the killdozer) with layers of steel and concrete and used it on June 4, 2004, to demolish the town hall, the former mayor's house, and other buildings in Granby, Colorado. The rampage ended when the bulldozer got stuck in the basement of a building he had previously destroyed. Heemeyer then killed himself with a handgun.
Homemade Armored Bulldozer Rampage in Colorado by Jon - In 2004, Marvin Heemeyer protested small-town government corruption by using a homemade armored bulldozer to destroy 13 buildings.The Dozer:Marvin John Heemeyer was a welder and the owner of a muffler repair shop in Granby, Colorado, population 1,864. Heemeyer became involved in a zoning dispute with town officials, centered around the construction of a concrete factory opposite his muffler shop. Granby town officials contend