Marvin Heemeyer, Doomsday prepper and all round narcissistic asshat built up a catalogue of people who supposedly wronged him, in particular the city Council who sued him after he refused to pay to tie into the existing sewer network and instead dumped his waste into a ditch at the edge of his property.

He then proceeded to customise a bulldozer and went into a rampage destroying buildings, ultimately becoming stuck and then he shot himself rather than be arrested.