Marvin John Heemeyer (October 28, 1951 – June 4, 2004) was an American automobile muffler repair shop owner who used a modified bulldozer to demolish several buildings in Granby, Colorado, in 2004.
Heemeyer had various grudges against Granby’s town officials, neighbors of his muffler shop, the local press, and various other citizens of Granby.
Over eighteen months, Heemeyer secretly armored a Komatsu D355A bulldozer with steel and concrete.
On Friday, June 4, 2004, Heemeyer used a bulldozer to demolish the Granby town hall, the former mayor’s home, and several other structures.
He committed suicide after the bulldozer got stuck in the hardware store he was destroying. No one else was injured or killed, in part due to timely evacuation orders.
What bulldozer did Killdozer use?
A video is going viral on YouTube, posted by WhistlinDiesel, and has been watched roughly one million times in just 24 hours.
It shows the content creator purchasing a Komatsu D335A Bulldozer, the same model used in the notorious Killdozer rampage in Granby, Colorado, in 2004.
It was pretty impenetrable. It had about a foot of concrete sandwiched between two sheets of tool steel, which is similar to an armor plate, which made it impervious to firearms.
But since a modern HEAT round can go through nearly a meter of armor, any kind of anti-tank weapon could have killed it.
What happened to the Killdozer?
Marvin began a path of darkness and destruction after losing all hope of saving his livelihood and pursuing his part in the American dream.
He decided to modify the bulldozer he had purchased to construct the rejected road to his shop, resulting in the “Killdozer.”
On April 19, 2005, the town announced that it would scrap Heemeyer’s bulldozer. The plan involved dispersing individual pieces to many separate scrap yards to prevent souvenir-taking.
Although only Heemeyer was killed in the incident, the modified bulldozer has been dubbed the “Killdozer” at times.
The Strange Story of Killdozer
Heemeyer’s story begins in Granby, a town in a high basin of the Rocky Mountains in northern Colorado. Granby, with an elevation of around 8,000 feet (2,438 meters), is small.
There are now fewer than 2,000 people living there, a figure that was the same in June 2004, when Heemeyer bulldozed his way into history.
The True Story of the Colorado Bulldozer Rampage,” and it is the subject of a 2020 documentary called “Tread,” which is currently available on Netflix.
There are numerous videos of that day available online, many of which include archival news footage of the rampage.
No one, that is, except Heemeyer, who committed suicide not long after his not-quite-lethal weapon became stuck in the middle of destroying Gambles Hardware.
“The idea somehow that Marv didn’t want to hurt anybody is absurd,” Brower says. “He just failed.”
After hours of attempting to enter the stalled dozer, police eventually cut through a steel door and extracted Heemeyer’s body in the early morning hours of June 5. Heemeyer was 52 years old.
Currently, you can watch “Killdozer” streaming on Plex and Plex Player for free. The documentary explains what prompted a man to destroy half of Granby with a modified bulldozer.