Over a period of roughly 18 months, Heemeyer equipped the Komatsu with a full complement of concrete-reinforced steel armor, external cameras, and automatic weaponry. He detailed his progress and his belief that he was being actively assisted in his endeavor by God in a series of disturbing audio tapes of whichTread makes liberal use.

On June 4, 2004, Heemeyer climbed inside the cockpit of his creation and unleashed it on Granby. For over two hours, he tooled around the town at a leisurely pace straight-up demolishing any and every building associated with his tormentors: Granby's town hall and police station, a bank, the offices of the local newspaper, a hardware store, and more. The police were basically powerless to stop him (you can't really slow down a bulldozer with a handgun), and mostly tried to stay out of his way.

Heemeyer's rampage only ended when the Komatsu became stuck in the basement of a building Heemeyer had just destroyed. He used a sidearm to end his own life as police closed in; his was the only death to occur that day. In total, Heemeyer had caused upwards of $7 million worth of damage, and inflicted psychological wounds on the town and its residents that linger to this day (viaDenver Post).

Heemeyer's story inspired Russian film director Andrey Zvyagintsev to make the 2014 filmLeviathan, one of the most acclaimed pictures to come out of that country in the last decade. The real story, though, is more bizarre than anything that any screenwriter could have dreamed up andTread lays it all out in fascinating and engaging fashion. The flick is available to stream right now on Netflix.

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