Seventeen years ago - Marvin John Heemeyer

You may not remember his name but you certainly remember the Killdozer.
From All That's Interesting:

The Story Of Marvin Heemeyer’s Revenge And His Killdozer
When Marvin Heemeyer of Granby, Colorado, reached a dead end in his fight with the zoning commission, the logical response would have been to petition them again and await a future response. After all, Marvin Heemeyer was said to be a logical man, so it makes sense that he would take a logical approach.

Instead, Marvin Heemeyer went home, outfitted his Komatsu D355A bulldozer with armored plates, and drove it through the town knocking down 13 buildings and causing $7 million worth of damage with his makeshift “killdozer.”

Marvin Heemeyer’s fight with the city had begun three years before his killdozer rampage.

I have posted about him before here and here, on the original date (and this update) as well as this local copycat.
Don't piss off your local welder...